Physics : PRE Medical Entrance Question Bank
(Paper - 1)

1. Following two wave trains are approaching each other.
y1 = a sin 200 p t y2 = a sin 208 p t
The number of beats heard per second is :
A. 8             B. 4             C. 1             D. 0

2. One of the geo-stationary satellites of India is vertically above
A. New Delhi             B. Mumbai             C. Allahabad             D. None of these

3. Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (m = 1.5) equal to
A. 1600 x 10-10 m             B. 7200 x 10-10 m             C. 1080 x 10-10 m             D. none of these

4. The ratio of secondary to primary turns is 4:5. If power input is P, what will be the ratio of power output (neglect all losses) to power input ?
A. 4:9             B. 9:4             C. 5:4             D. 1:1

5. Lenz's law applies to
A. electrostatics B. lenses
C. electro-magnetic induction 
D. cinema slides

6. If a proton and anti-proton come close to each other and annihilate, how much energy will be released ?
A. 1.5 x 10-10 J             B. 3 x 10-10 J             C. 4.5 x 10-10 J             D. none of these

7. If Sn is doped with As, what will be the result ?
A. n-type semi-conductor                       B. p-type semi-conductor
C. intrinsic semi-conductor                     D. none of these

8. A charge is placed at the centre of a cube, what is the electric flux passing through one of its faces?
A. (1/6) x (q/e0)             B. q/e0             C. 6q/e0             D. None of these

9. What is the degree of freedom in case of a mono atomic gas ?
A. 1             B. 3             C. 5             D. None of these

Go to part : -   1      2      3      4      5      6      7