As you want I am here giving you sample solved question paper for preparation for AIIMS MBBS entrance exam

AIIMS MBBS Sample Solved Question Paper
1. To obtain a p-type germanium semiconductor, it must be doped with

(a) arsenic
(b) antimony
(c) Indium
(d) phosphorous

2. Sound waves do not.show the phenomenon of

(a) interference
(b) diffraction
(e) refraction
(d) polarisation

3. The magnifying power of a compound microscope is high If
(a) both me objective and the eyepiece has short focal lengths
(b) both the objectve and the eyepiece have long focal lengths
(c) the objective has a Short focal length and the eyepiece has a long focal length
(d)the objective has a long focal length and the eyepiece has a short focal length

5. To double the covering range of a TV transmitter tower, its height should be made

(a) 2 times
(b) 4 times
(c) √2 times
(d) 8 times

6. An alternatmg voltage V = V0sin ωτ is applied across a circuit. As result I = I0 sin(ωτ)- π/2)flows ill it. The power consumed per cycle is

(a) zero
(b) 0.5 V0I0
(d) 0.707 V0I0
(d) 1.414 V0I0

7. A slab consist of two portions of different materials of same thickness and having the conductivities K1 and K2. The equivalent thermal conductivity of the slab is

8. A prism is made up 0f material of refractive index √3. The angle of prism is A. If the angle of minimum deviation is equal to the angle of the prism, then the value of A is
(a) 30o
(b) 45o
(c) 60o
(d) 75


10. The half-life of a radioactive substance is 10 day. This means that
(a) the substance completely disintegrates in 20 days.
(b) the substance completely disintegrates in 40 days.
(c) 1/8 part at the mass of the substance will be left intact at the end of 40 days
(d) 7/8 part of the mass of the substance disintegrates in 30 days.

11. A source and an observer are moving towards each other with a speed equal to υ/2, where υ is the speed of sound. The
source is emitting sound of frequency n.The frequency heard by one observer will be
(a) Zero
(b) n
(c) n/3
(d) 3n

12. Velocity of sound waves in air is 330 m/s. For a particular sound in air a path difference of 40 cm is equivalent to phase difference of 1.6π. The frequency of the wave is
(a) 165 Hz
(b) 150 Hz
(c) 660 Hz
(d) 330 Hz

13. The power factor of the circuit shown in figure is
(a) 0.2
(b) 0.4
(c) 0.8
(d) 0.6

14. A particle is executing linear simple harmonic motion amplitude A. What fraction of the total energy is kinetic when the displacement is half the amplitude.
(a) 1/4
(b) 1/2√2
(c) 1/2
(d) 3/4

15. Two simple harmonic motions are represented by y1=4sin(πt– π/2) and y2=3cos(4πt). The resultant amplitude is
(a) /
(b) 1
(c) 5
(d) 2+√3