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
C. necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion
they can see very dearly only in darkness
they produce ultrasonic waves which guide them
their eyes are sensitive to darkness
their eye holes expand in darkness
astrology
astrophysics
astrometry
Both (b) and (c) above
resistor
thermocouple
light bulb
neon tube
the resistance
the square of the current flowing through it
the time the current flows
All the above
cools the body that transfers it
heats the body that absorbs the heat
may change the physical state of the substance
All the above
Hygrometer
Hypsometer
Hydrometer
Densimeter
diffusion
effusion
vaporisation
sublimation
fluorescence
incandescence
both (a) and (b)
None of these
centrifugal force
frictional force
gravitational force
distillation
Tin
Lead
Nickel
An alloy of tin and lead
an erect, virtual image of diminished size
an erect, real image of diminished size
an erect, real image of double size
a virtual image of double size
electroplating
electrotyping
electrolysis
distillation
pouring ice cold water into the inner tumbler
pouring ice cold water on the outer tumbler
pouring hot water into the inner tumbler
dipping both the tumblers in hot water
Rutherford
Neils Bohr
Albert Einstein
JJ Thompson
at the middle
at a point away from the hinge (near the rim)
near the hinge
None of the above
lead
zinc
carbon
tin
October 20, 1978
November 14, 1978
January 26, 1979
April 19, 1975
potential difference
resistance
current
All the above
both pieces will lose their magnetism
one piece will have North Pole on both ends and the other South Pole on its both ends
each will remain a magnet with North Pole at one end and South Pole at the other
the longer piece will behave as a bar magnet while the smaller will have no magnetism at all
the nature of the radiating surface
area of the radiating surface
temperature difference between the body and the surroundings
All the above
Television - Baird
Transistor ~ Shockley
Thermometer - Celsius
Barometer Torricelli
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 its bob
the material of the bob
the amplitude of vibration
acceleration due to the gravity at the site of experiment
the nature of the liquid
area of the exposed surface of the liquid
temperature of air and of the liquid
All the above
a quantum of light energy
a quantum of matter
a positively charged atomic particle
another name for positron
it absorbs sun's rays
it reflects sun's rays
it retains the heat inside by the greenhouse effect
it radiates heat better than metals
for automatically maintaining a steady temperature
for measuring electricity
to reduce the voltage of electricity
for producing heat
protons and electrons
alpha particles
gamma rays
All the above
it stops due to malfunctioning
it starts emitting dangerous radioactive radiations
it is shut down to avoid explosion
it is ready to produce controlled energy
mininuclear reactor
a dynamo
a thermopile
solar cells