electroplating
electrotyping
electrolysis
distillation
C. electrolysis
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
direct sun's rays
radiation from earth's surface
radiogenic heat (resulting from radioactive decay)
cosmic rays coming from space
a straight line
an ellipse
a circle
a parabola
electroplating
electrotyping
electrolysis
distillation
elliptical
a straight line
a parabola
a vertical line
adhesion
surface tension
gravitational force
atmospheric pressure from all sides
the sun comes in between the earth and moon
the moon is stationary
the time taken by the moon to rotate on its axis is the same as the time taken by it to revolve round the earth
moon revolves round the sun
centrifugal force
frictional force
gravitational force
distillation
Nebulae
Quasars
Meteors
Comets
Evaporation at the surface causes cooling
The heat obsorbed at the surface is passed on to the bottom
Because of impurity in the water
Because of convection currents set up inside water
the nature of the radiating surface
area of the radiating surface
temperature difference between the body and the surroundings
All the above
the loudness of the sound increases
the loudness remains the same
the loudness decreases
the sound suddenly stops
diffusion
effusion
vaporisation
sublimation
deflected by electric field
deflected by magnetic field
slightly deflected by electric field and magnetic field
not deflected by electric and magnetic fields
increasing the length of the coiled wire
increasing current supply
increasing the size of the iron core
All the above
the ampere
the volt
the ohm
the coulomb
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
increases
decreases
remains unchanged
first decreases then increases
rough white
rough black
shining white
shining black
its momentum is halved
its kinetic energy is halved
its acceleration is halved
its potential energy is halved
of the surface tension of mercury
mercury is a semi-solid
of the high viscosity of mercury
the density of mercury is greater than that of steel
cohesive
centrifugal
frictional
gravitational
Joule
Newton
Joule/Sec
Erg/Sec
a horizontal position
a nearly vertical position with its South Pole downwards
a nearly vertical position with its North Pole downwards
a slanting position
there is more friction on ice than on concrete surface
ice is soft and spongy while concrete is hard
the friction between ice and the feet is less than that between the concrete and the feet
None of them
first
second
third
fourth
good conductor of heat
good conductor of electricity
bad conductor of electricity
Both (a) and (b) above
absorbs
refracts
reflects
scatters
the quantity of heat energy in a body
thermal radiations quantitatively
high temperature
the intensity of sound
increase
decrease
remain the same
first decrease and then increase