Model Question Physics for BAMS

PHYSICS:

1.    1. A particle of mass ‘m’ is observed from an inertial frame of reference & is found to move in a circular path of radius ‘r’ with a uniform speed ‘v’ then the centrifugal force on it is.

a. mv²/r towards centre                 b.mv²/r away from centre

c. mv²/r along tangent through particle    d. zero

2.    2. In compound microscope the intermediate image is.

a. virtual, erect & magnified b. real, erect & magnified

c. real, inverted & magnified         d. virtual, erect & reduced

3.    3. The distance moved by a particle in a simple harmonic motion in one tone period is.

a. A                      b.2A           c. 4A          d. zero

4.    4. Mass of photon at rest is.

a. 1amu                b. zero        c. 1.6810^-35kg     d.9810^-31kg

5.    5. When water is heated from oº to 4ºC

a. C_p=C_v              b. C_p< C_v                c. C_p > C_v            d. C_p- C_v=R

6.    6. An inductor stores energy in

a. its electric field         b. its coils

c.  its magnetic field     d. both a & c

7.    7. In inelastic collision.

a. K.E 1^st increase then decreases b. remain constant

c. final K.E is less than initial K.E d. final K.E is more than inital

8.    8. 50% 0f radioactive substances decompose in 5hrs. What is the time for the 99.9% decomposition?

a. 10 yrs              b. 50 yrs    c. 100 yrs            d. none

9.    9. A stationary charge posses,

a. an electric field only         b. a magnetic field only

c. both of a & b                      d. an electromagnetic wave

10. A stone is dropped into a well in which the level of water is ‘h’ below the top of the well. If ‘v’ is the velocity of sound, the time ‘T’ after which the splash is heard is given by:

a. T=2h/v                      b. T=√(2h/v)+h/v

c. T=√(2h/v)+h/g         d. T=√(h/2g)=2h/v

11.  11. A unit less quantity:-

a. never has a non zero dimension b. always has a on zero dimension

c. may have a non zero  dimension         d. doesn’t exist

12.  12. An ice berg is floating partly immerged in sea water, the density of sea water is 1.03 gm/cm³ & that of ice is 0.92 gm/cm³. The fraction of total volume of ice berg above the level of sea water is,

a.0.8%       b. 11%       c. 34%       d. 8.1%

13.  13. Plank’s constant has the dimension of

a. force                          b. energy

c. linear momentum     d. angular momentum

14.  14. In the sonometer wire, the produced waves are:

a. transverse, stationary, unpolarized    b. transverse stationary polarized

c. longitudinal, stationary, polarized        d. transverse, progressive, polarized

15.  15. The capacitance of a parallel plate capacitor doesn’t depend upon;

a. area of plate                                 b. medium between plates

c. distance between plates              d. metal of the plates

Answers

1.    d	2.    c	3.    c
4.    b	5.    b	6.    c
7.    c	8.    b	9.    a
10.        b	11.        a	12.        b
13.        d	14.        b	15.        d