a high resistance
a very low resistance
no resistance at all
resistance of 400 ? w
B. a very low resistance
chemical, heating and magnetic effects of electricity
discharge of electricity through gases
the action of ultraviolet radiation on certain fluorescent materials
Both (b) and (c) above
velocity
wavelength
frequency
Both (a) and (b) above
turbulence caused by the wind
buoyancy of air
unequal pressures acting on it
sudden change in the direction of the wind
ultraviolet rays
gamma rays
radio waves
infrared waves
the loudness of the sound increases
the loudness remains the same
the loudness decreases
the sound suddenly stops
speed
frequency
wavelength
All the above
Liquid ammonia
Carbon tetrafluoride
Dichloro-difluoro-methane
Sulphur dioxide
the loudness of the sound increases
the loudness remains the same
the loudness decreases
the sound suddenly stops
absorption of a neutron by a nucleus
breakup of the nucleus of a heavy atom into two nearly equal halves emitting two or three neutrons and releasing large amounts of nuclear energy in the process
the scattering of neutrons
formation of heavier nucleus
adhesion
surface tension
gravitational force
atmospheric pressure from all sides
wide and shallow
narrow and shallow
wide and deep
narrow and deep
a neutron star
a binary star
a dwarf star
a polar star
conservation of mass
Newtonian law of action and reaction
conservation of angular momentum
None of the above
purity
hardness
high density
high refractive index and low critical angle
a hydrometer
a manometer
a lactometer
an anemometer
a high resistance
a very low resistance
no resistance at all
resistance of 400 � w
Sir Isaac Newton
Kepler
Copernicus
Ptolemy
cohesion
adhesion
capillary action
absorption
Ammeter
Altimeter
Adrinometer
Anemometer
capillarity
cohesion
adhesion
viscosity
protects the article from atmospheric corrosion
gives it a more attractive appearance
Both (a) and (b) above
None of the above
angle of inclination of the earth
changes in radio-active minerals in it
period taken by Sun's light to reach the earth
artificial satellites revolving round the earth
will increase
will decrease
will have no change
will either increase or decrease
Jupiter
Mars
Mercury
Saturn
electromagnetic radiations
helium nuclei
negatively charged particles
neutral particles
look like falling stars
are really pieces of rock or metal
burn up as they shoot through the air
All the above
4 x 10 8 m/s
1500 m/s
330 m/s
500 m/s
equal to half its focal length
equal to its focal length
twice its focal length
not related to its focal length
short sight
long sight
astigmatism
presbyopia
force
velocity
acceleration
speed