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
D. All the above
the immersed volume of the body
density of the liquid
acceleration due to the gravity at the place
All the above
increases the melting point of ice
decreases the melting point of ice
has no effect on the melting point of ice
increases the volume of the ice
transverse
longitudinal
transverse and longitudinal
neither transverse nor longitudinal
is proportional to its original length
is proportional to the increase of temperature
is inversely proportional to its original length
Both (a) and (b) above
Frequency
Amplitude
Speed
Wavelength
2 minutes
4 minutes
12 minutes
8 minutes
helium
argon
hydrogen
oxygen
the gun moves forward
the gun jumps up
the gun does not move
the gun recoils with the same momentum as the bullet
Thorium
Uranium
Plutonium
Radium
a quantum of light energy
a quantum of matter
a positively charged atomic particle
another name for positron
astrology
astrophysics
astrometry
Both (b) and (c) above
Nebulae
Quasars
Meteors
Comets
for measuring the velocity of wind
in the manufacture of fireworks
in finding the coefficient of apparent expansion of a liquid
for measuring high temperatures
the necessary centrifugal force may be obtained from the horizontal component of the weight of the train
the frictional force between the track and the wheels is avoided
the necessary centripetal force may be derived from the horizontal component of the weight of the train
None of these
speed of sound is greater in steel than in air
speed of sound is greater in air than in steel
part of sound waves is reflected between rail tracks
the boy's ears are at a different distance from the source
The Milky Way
Radio Galaxy
Andromeda Nebula
Magellanic Clouds
turbulence caused by the wind
buoyancy of air
unequal pressures acting on it
sudden change in the direction of the wind
the valve filaments have low resistance
valve-radio sets work at a higher voltage
transistor set has a low resistance
filaments of the valves cake time to beat up and function
less than
greater than
equal to
greater than or equal to
the rise of temperature
rise of its frequency
decrease in humidity
fall of temperature
red
violet
green
yellow
will increase
will decrease
will have no change
will either increase or decrease
Uranium that is very pure
Uranium in which the concentration of the isotope U-238 is more than in the naturally occuring uranium
Uranium in which the concentration of the isotope U-235 is more than in the naturally occuring uranium
None of the above
Galileo
Bhaskara
Aryabhatta
Ptolemy
the mass of its bob
the material of the bob
the amplitude of vibration
acceleration due to the gravity at the site of experiment
frequency is higher
wavelength is smaller
pitch is smaller
air is warmer
it can be transmitted easily and efficiently
Alternating Current (AC) loses the least amount of energy when transmitted at high voltages
Alternating Current (AC) voltage can be easily increased or decreased
all the above
protects the article from atmospheric corrosion
gives it a more attractive appearance
Both (a) and (b) above
None of the above
historical sites
architecture
sound
trigonometry
kinetic energy
potential energy
acceleration
All the above