Institute of Medicine, Most Probable Questions with Solutions

 Institute of Medicine (IoM), in the capital city Kathmandu, is the premier medical institution of Nepal.

The Institute of Medicine (IOM), established in 1972 at Tribhuvan University, was entrusted with the responsibility of training health care workers at all levels for the health care needs of Nepal. Within the first decade of its establishment, the IOM developed 12 campuses scattered over the country: three campuses in Kathmandu and nine outside the Kathmandu Valley.

Initially, the emphasis of IOM was on the training of middle-level health workers. Programmes serving this purpose include ANM, CMA, Proficiency Certificate Course in General Medicine, Pharmacy, Radiology, Physiotherapy, Nursing, Health Laboratory and Traditional Medicine.

The institutional goals of IOM have continued to change. The mission of the IOM expanded into training tertiary-level health professionals. By 1977 it had at the graduate level two-year Bachelor programmes in Community Nursing, Paediatric Nursing and Adult Nursing.

In 1978, a community-oriented integrated MBBS programme was started with intake of 22 students. Subsequently, the class size was increased to 60, and in 2013 it was further increased to 76.

In a groundbreaking moment for the institute, Professor Prakash Sayami was appointed as the new dean of the Institute, prompted by a second fast-unto-death by Professor Govinda K.C. This brought a change to the system of appointment of the officials on the basis of political affiliations and promulgated the system of seniority in the Institute.

Mounting pressure from the Tribhuvan University officials on political appointments and provision of affiliations to resource-poor hospitals led to the resignation of Professor Prakash Saymi. He was succeeded by political appointee Prof. Sashi Sharma. Sharma is alleged to be involved in embezzlement of large amounts of money during his term as the vice-president of Nepal Medical Council and was subjected to investigations by the Commission for the Investigation of Abuse of Authority (CIAA). In reaction, Professor Govinda KC, the philanthropist orthopedic surgeon, announced a fast unto death in January 2014. IOM offers 45 scholarship seats in MBBS every year.

Questions 

91. The dimension formula for Plank’s Constant is?

a.  M²L²T^-1       b. M¹L²T^-2

c. M¹L¹T^-2                 d. M¹L²T^-1

92. If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is:

a. 0       b. 120              c. 45                 d. 90

93. If unit of force and length are doubled, then the unit of power becomes:

a. 2 times          b. 4 times         c. 6 times          d. None

94. A body is moving in north with 3km/s and B with 4 km/s east. What is the relative velocity of a body with respect to B.

a. 5 km/s west of north

b. 5 km/s east of north

c. 5km/s towards north

d. 5km/s towards west

95. A body is thrown vertically upward and attains a velocity 15 m/s at half the maximum height. The maximum height up to the body can reach will be:

a. 45.8m           b. 34.5m

c. 22.9m           d. 17.8m

96.If the displacement of a body is proportional to square of time. Then body has……

a. constant velocity                  b. increasing acceleration c. constant acceleration         d. decreasing acceleration

97. A person weighting 80 kg is standing on a lift moves upward with a uniform acceleration of 4.9m/s² , then apparent wt. of the person is:

a. 40kg             b. 80kg             c. 90kg     d. 120kg

98. A box weighting 20kg is pushed along the floor of a constant speed by applying the horizontal force, If the coefficient of friction is 0.2, then force applied is:

a. 6 N             b. 12 N                 c. 50 N         d. 240 N

99. Power of water pump is 4 KW, volume of water which can be raised to height 10m in minutes is (g= 10ms-2)

a. 1000 ltr                 b. 120 ltr                     c. 1200ltr         d. None

100. g is the acceleration due to gravity at the equator. Its value at the pole is:

a. less than that at equator

b. greater than g

c. lesser than g

d. None of the above

101. The time period of a simple pendulum is doubled when;

a. its length is doubled

b. mass of bob is doubled

c. the length is made four times

d. the mass of bob and length are made doubled

102. The elasticity of a highly elastic body is:

a. 1       b. 0.5   d. 0      d. ∞

103. With the rise in temperature, surface tension

a. Increases                              b. Decreases    

c. Remains Constant                 d. Becomes zero

104. Two straight parallel conductors carrying current in opposite directions:
a. attract                       b. repel

c. Neither attract nor repel

d. doesnot depend upon direction

105. For same pressure and density, Speed of sound is maximum in:

a. mono-atomic gas                 b. diatomic gas

c. poly-atomic gas                   d. equal

106. When the absolute temperature of a gas is increased three times, the root mean square velocity of gas molecule will be:

a. 3 times          b. 9 times

c. 1/√3 times     d. √3 times

107. If an object cools from 80̊C to 70̊ C in one min. in the room at 30 ̊C, the time it will take to cool from 50̊C to 40̊C is :

a.  2 min           b. 3min            d. 4min            d. 5min

108. The pressure and volume are changing but the temperature is constant in the process:

a. Adiabatic      b. Isothermic   

c. Isobaric        d. Isochoric

109. The intensity of sound at night increases because of:

a. Low temperature

b. Increases in density

c. Decrease in density

d. Calmness

110. The temperature at which the speed of sound in air becomes double of its value of 27 ̊C is:

a. 54 ̊C       b. 327 ̊C     c. 927 ̊C           d. -123 ̊C

111. A thin stream of water from a tap is attracted by placing a rod near it the rod is:

a. the south pole of magnet

b. charged with static electricity

c. the north pole of the magnet

d. any non-magnetic substance

112. A charge q is placed at the center of the line joining two equal charges Q. The system of three charges will be in equilibrium if q is equal to:

a.               b.          c. -4Q            d.

113. The energy per unit volume is given by:

a. E²/₀     b. E²₀   c.  2E²₀   d. 1/2E²₀  

114. In an air parallel plate capacitor, the separation between the plates is doubled, if this cause doubling of the capacitance then the dielectric constant is:

a. halved b. doubled c. quadrupled d. unchanged

 

115. The intensity of sound gets reduced by 10% on passing through a slab. The reduction in intensity on passing through the consecutive slabs would be……..

a. 20%                 b. 19%             c. 5%                  d. 50%

116. When a sound wave goes from one wave to another, the physical characteristics of wave that remain unchanged is:

a. speed                         b. amplitude       

c. frequency               d. wavelength

117.The polarizing angle between reflected and refracted rays is

a. 0                b. 45     c. 90               d. 180

118. A person cannot see object lying beyond 50cm.The power of lens to correct the vision is…….

a. +5D                    b. 0.5D           c. -2D                d. +2D

119. Five equal resistors when connected in series dissipated 5 unit power.If they are connected in parallel,the power dissipated will be………

a. 25W         b. 50W                c. 100W               d.125W

120. Radiations coming from Lyman Series falls in the range of:

a. Visible          b. Infared         c. UV            d. Far IR

 

For Paramedical

 

181. An X-ray photon has a wavelength 0/01 A ̊ . Its momentum (in kg ms ^-1 ) is:

a. 6.6 * 10^-22     b. 6.6 * 10^-32         c. 3.3 * 10^-22          d. 0

182. The de-Broglie wave of body with mass ‘m’ having energy E is:

a.             b.                c.              d.

183. Particle nature of light is shown by;

a. Photoelectric effect

b. Velocity of light

c. Diffraction

d. Refraction

184. In Nepal, the supply of AC voltage is 220V. The peak voltage is:

a. 310 V           b. 220V            c. 110 V           d. 350V

185. The core in a transformer is laminated in order to:

a. Decrease Spark

b. Reduce loss due to eddy current

c. increase area of coil

d. decrease friction

186. One meter wire carrying 2A is placed in magnetic fields 2 tesla, force acting on wire is:

a. 1N                b. 2N                c. 3N                d. 4N

187. Area of hysteresis curve indicates:

a. Retentivity

b. Loss of energy per cycle

c. Coercivity

d. Diamagnetism

188. If the strength of the current is decreased by 1%, the power of the bulb will chamge by:

a. 8%      b. 0.01%       c. 2%               d. nearly 4%

189. A wire of resistance 10 ohm is bent into circular form. The equivalent resistance between two points of any diameter is:

a. 2.5 Ω            b. 4 Ω               c. 8 Ω               d. 32 Ω

190. The width of the third fringe in Young’s double slit interference experiment is 0.1 mm. the width of the fifth fringe is:

a. 0.17mm        b. 0.06mm     c. 0.5mm     d. 0.1mm

191. Lumen is the unit representating:

a. Luminous flux

b. Luminous intensity

c. Illuminance

d. Luminance

192. The minimum distance required for the production of echo is:

a. 17 m        b. 16.5 m        c. 17.5 m       d.19 m

193. The product of moment of inertia and angular acceleration gives:

a. Linear momentum    b. Angular acceleration

c. Torque                        d. Force

194. Quality of two sounds is different because of:

a. Pitch      b. Loudness     c. Quality     d. Timbre         

195. Among the following lights, which has minimum speed in medium?

 a. red       b.  Violet          c. blue         d. green

196. 8 drops of Hg each of 1V coalesce to form 1 drop. What’s the potential of the larger drop?

a. 1V                 b. 2V    c. 3V                d. 4V

197. The length of potentiometer wire is 5 meters. And electron in this wire experiences a force of 4.8×10^-19 N. The emf of the main cell used in the potentiometer is:

a. 1.5 V       b. 3 V     c.  5 V     d. 15 V

198. Instrument used to measure temperature of sun by radiation method is:

a. Radiomicrometer                   b. Barometer    

c. Pyrometer                              d. Thermometer

199. The index of reflection of diamond is 2.4, velocity of light in diamond is :

a. 1.25 *10 ⁸m/s b. 2.5 *10 ⁸m/s

c. 1.5 *10 ⁸m/s              d. 2.0 *10 ⁸m/s

200. Two tuning fork A and B sounded together to produce 5 beats. The frequency of B is 512 Hz. When tuning fork A is filled and sounded together, the beat frequency increases. The frequency of A is:

a. 502 Hz         b. 507 Hz         c. 512 Hz       d. 517 Hz

 

 

 

Answers

 

 

 

 

Answers

91. d. M¹L²T^-1

Energy of photon is given as 
E=hν

h= E/v

Dimension of E=[ML²T⁻²]

Dimension of ν is [T⁻¹]

Thus, the dimension of plank's constant h is [ML²T⁻¹]

 

92. d. 90

Let the two vectors be A and B with magnitudes A and B respectively. Then magnitude of their sum is given by:

∣A+B∣= ​………….(1) (θ= angle between the vectors)

Magnitude of their difference is given by:

∣A−B∣= ​…​…………(2)

As ∣A+B∣=∣A−B∣

⇒A²+B²+2ABcosθ= A²+B²-2ABcosθ

⇒4ABcosθ=0 or cosθ=0

⇒θ=90.

 

93. b. 4 times

Energy = Work = Force ×distance (or length)
∴ If the units of F and l are doubled, then the unit of energy will be 4 times the original.

 

94. a. 5 km/s west of north

Use the relative velocity equation to solve these types of problems. The relative velocity of one object with respect to another object only depends on the velocity of each object at that moment in time.

The hypotenuse is 5 km/s and θ=tan⁻¹(4/3) =53.1

           θ=tan−1(4/3) =53.1^∘

Your final answer must include a direction:

The velocity of A with respect to B = V_A/B=5V_A/B=5 km/s west of north.

 

95. c. 22.9 m/s

v²=u²-2gh

(h=H/2)

 

96. c.  St²à S=Kt²à v== 2Ktà a== 2k [constant]s

 

97. d. 120kg

R−mg=ma

 

R=m(g+a)

 

R=80(5+10)

 

R=1200N (120kg)

 

98. c. 50N

Here the required  force should be the frictional force. 

Thus, F=  f  =   μmg

=0.25×20×10

=50N

 

99. c. 1200 ltr

Power, P=4kW=4000W

Height, h=20m

Time, t=60sec

power=work​ / time

4000=m×10×20​/ 60

m=1200Kg

The pump can raise 1200 litre in one minute

100. b. greater than g

Value of effective g increases as we move from equator to north pole because on equator its value is less due to earth's rotational motion and consequent centrifugal force. 

Moreover, the equator of the earth is at a larger distance from the centre of the earth as compared to the poles. This is another reason why g is greater on the pole than the equator.

101. c. the length is made four times

Formula used:
Time period
⇒T=2π√L/g

 

102. d. infinity

103. b. Decreases

Higher temperature weakens the inter-molecular forces among water molecules and thus decreases the surface tension.

104. b.  Repel

If two parallel wires carry current in opposite directions, they repel each other whereas if two parallel wires carry current in same direction, they attract each other.

 

105. a. Monoatomic

Kinetic energy directly proportional to temperature.

At a given temperature and pressure, molecules of all gases have same kinetic energy.

This does not imply that they have the same speed.

The gas with light weight that is lower molecular mass move faster.

The gases with higher molecular mass move slowly.
Monoatomic gases have a lower molecular mass compared to diatomic gases, triatomic gases and polyatomic gases.

This makes the speed of sound to be faster in monoatomic gases.

 

106. d. √3

107. b. 3 min

 

108. b. Isothermic

 

The word 'isothermal' means constant temperature. An isothermal process is a process occurring at a constant temperature.

The word 'adiabatic' means isolated from surroundings. Adiabatic process means a process that neither allows the heat to transfer inside nor let the heat out of the system.

 

109. b.  Increase in density

 

We know that at night amount of carbon dioxide in atmosphere increases which raises the density of atmosphere. since intensity is directly proportional to density, intensity of sound is more at night.

 

110. c. 927 C

Speed of sound in air

V∝√T​

Thus, is velocity becomes double, the temperature must go to four times its initial value.

 

Initial temperature=27+273=300K

 

Hence final temperature =1200K=927C

111.b

Falling water will be charged due to friction so it is attracted by charged rod.

112. b.

 

For the system to be in equilibrium net force on each charge should be zero.

i.e. F1 + F2 =0

 +  =0

Solving, q = - Q/4

 

113. d

114. c. quadrupled

C = ε₀KA/d

C’ = ε₀K’A/d’

2C = ε₀K’A/2d

4C = ε₀K’A/d

K’ = 4K

 

 

 

 

115.  B

Let the original intensity be 100I.

Intensity remaining after passing through a slab is 100I-*100I = 90I

Intensity remaining after passing through next slab=90I-*90I=81I

Total intensity lost=100I-81I=19I=19%

116. .C frequency of wave (light +sound ) does not change with medium.

117. c. 90

 

 

 

118. c. -2D

 

P===-2D

 

119. d. 125 W

P_parallel    =   n²P_series

=5²*5 

=125W

 

120. c. UV

 

 

 

 

Solutions For Paramed

 

 

181. a. 6.6 * 10^-22

 

 

182. c

 

 

183. a. Photoelectric effect

 

CONCEPT:

 Photoelectric effect:

The phenomenon in which the light energy forces a metal surface to release electrons is called the photoelectric effect. When the light hits, it shows the particle theory of light, and light is defined as a stream of photons or energy packets. The other phenomena such as interference, diffraction, and polarization can only be explained when the light is treated as a wave wherein the photoelectric effect, line spectra, and the production and scattering of x rays demonstrate the particle nature of light.

 

EXPLANATION:

From the above discussion, the

photoelectric effect shows the particle nature of light.

 

184. a. 310 V

 

 

185. b. Reduce loss due to eddy current

 

Eddy currents are the loops of electrical current induced within conductors by a changing magnetic field in the conductor, due to Faraday's law of induction.

 

Making the core out of thin laminations parallel to the magnetic field with insulation between them reduces the eddy currents and thus also reduces the energy loss due to eddy currents.

 

186. d. 4N

F=Bilsinθ

F= 2*2*1*1

 

187. b. Loss of energy in one cycle

 

The lost energy is given out as heat and is referred to as the hysteresis loss. The area of the loop represents the energy lost in one cycle.

 

188. c. 2%

 

189. a. 2.5

 

 

 

 

 

190. d. 0.1 mm

 

Fringe Width  =

 

 

Fringe width is the distance between two consecutive bright spots (maximas, where constructive interference take place) or two consecutive dark spots (minimas, where destructive interference take place).

 

191. a. Luminoua flux

 

The lumen (symbol: lm) is the SI derived unit of luminous flux, a measure of the total quantity of visible light emitted by a source per unit of time.

 

192. b. 16.5 m

To hear an echo of a sharp sound, the time interval between original sound and reflected sound ≥1/10 sec.

 

193. c. Torque

           T = I α

194. d. Timbre

       Timber is the quality of auditory sensations produced by the tone of a sound wave. The timbre of a

       sound depends on its wave form, which varies with the number of overtones, or , harmonics, that

       are present in their frequencies, and their relative intensities.

195. b.  Violet

      All colour of light have same speed in vacuum but red light has maximum speed and violet light has

      minimum speed in the medium. (V α λ)

196. d. 4V

197. d. 15V

       F= qE = q.   = e.  { q=ne & n=1  }

198.c. Pyrometer

      Pyro-heliometer is used to measure the temperature of the sun.

      Beckman’s thermometer is used to measure the boiling point of the water.

 

199. a. 1.25 *10 ⁸m/s

 

200.d. 517 Hz

f _A = (512+5)

     =   517 Hz

To increase the frequency, initial frequency of fork A must be 517 Hz.