Model question for St. Xavier

What causes the reverberation
a) interference
b) refraction
c) diffraction
d) reflection

Persistence of hearing is
a) 0.2 sec
b) 7 sec

c) 0.3 sec
d) .1 sec
0.4 sec
Loading of tuning fork decreases the frequencies while filing it,
its frequency?
a)increase than decrease
b) decrease only
c) increase only

d) none 
Absolute zero temperature means
a) 273.15°C
b) 273.12°C
c) 273.17 C
d) 273.69°C
Specific heat capacity of hydrogen is
a) 3.5 cal/goc
b) 4.6cal/g°c
c) 4.2 cal/g°c

If water in a closed bottle is taken up to the Moon and open, the
water gets
a) Freezed
b) Boiled
c) Dissociated in H2 and CO;
d) Evaporated
A man can felt 60g of ice by chewing in one minute. The power of
man is
a 80W
b 4800w
c. 336w
d. 19w
At '0k' which of the following properties of a gas will be zero?
a. kinetic energy
b. vibrational energy

c. potential energy

d. density

A magnet of magnetic moment M is rotated through 360° in a
magnetic field, the work done will be

a. Zero
b. Positive
c. None of above
d. Negative

The surface density on the copper sphere is o. the electric field
strength on the surface of the sphere is
HO d. alEo
205(C
c
2EO