velocity
momentum
acceleration
angular velocity
C. acceleration
increases
decreases
neither increases nor decreases
first increases then decreases
poor reflection from the mirrors
scattering of light from the mirrors
absorption of some light by the mirrors
absorption of light by the atmosphere
forward
backward
sideways
None of the above
he may increase his speed
his weight may be reduced
necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion
no frictional force may be produced between the wheels and the axle
Sun
Jupiter
Mercury
Earth
converts direct current into alternating current
converts alternating current into direct current
steps up or steps down a given alternating current voltage
supplies current with zero resistance
umbra
penumbra
image
black portion of light
cohesion
adhesion
capillary action
absorption
Television - Baird
Transistor ~ Shockley
Thermometer - Celsius
Barometer Torricelli
the size and shape of the room
the ability of the ceiling, walls and floor to exclude unwanted sound
the use of furnishings made of sound absorbing materials
All the above
in medical and surgical diagnosis
in testing the quality of the linings and pads used in vehicles and aircraft brakes
to clean surgical instruments, jewellery and similar articles
All the above
an ammeter
a rheostat
a voltmeter
a voltameter
Silver
Copper
Nichrome
Dry wood
its density
its temperature
its elasticity
All the above
placing it inside a solenoid through which an alternating current is flowing
heating the magnet to redness and then allowing it to cool
dropping it several times or hammering it while lying east-west
All the above
maximum at the equator
minimum at the equator
minimum at the poles
the same everywhere
Lens
Iris
Retina
Eyelid
directly proportional to its pressure
inversely proportional to the square root of its pressure
directly proportional to the square root of its pressure
independent of its pressure
the mass of earth
the mass of the satellite
the radius of the earth
gravitation of the earth
ultraviolet rays
gamma rays
radio waves
infrared waves
able to refract the sound
good absorbers of sound
good reflectors of sound
All the above
Radium
Radon
Uranium-238
Plutonium
half
one fourth
four times
two times
centrifugal force
frictional force
gravitational force
distillation
Irene Curie
W Bothe and H Becker
James Chadwick
Jean Joliot
the reflection of sound waves
the refraction of sound waves
the interference of sound waves
reverberation of sound waves
frequency is higher
wavelength is smaller
pitch is smaller
air is warmer
the ionised hydrogen molecule
the nucleus of helium atom
the nucleus of hydrogen atom
the positive counterpart of electron
shifted upwards
shifted downwards
shifted neither upward nor downward
shifted upward or downward depending on the density of the liquid
refraction
reflection
total internal reflection
parallax