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
A. pouring ice cold water into the inner tumbler
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
Neptune
Uranus
Jupiter
Saturn
collision between molecules of filled gas under electric current
heavy current
vacuum inside the tube
falling of ultra violet rays on the white inner coating of the tube
can focus very rapidly as pictures change
is quicker than the brain
can see two images separated only if the interval' between seeing them is more than' one-tenth of a second
can shut out some of the light
increases to a great extent
increases slightly
decreases slightly
decreases rapidly
velocity
momentum
acceleration
angular velocity
a straight line
an ellipse
a circle
a parabola
it is nearest to the moon
it is nearest to the sun
it is nearest to Pluto
it is farthest from the sun
air
glass
vacuum
water
the square of the current
the resistance of the conductor
the time for which the current flows
All the above
alternating current of very high frequency
alternating current of very high voltage
a very large direct current
a high voltage direct current
absorbs
refracts
reflects
scatters
Radium
Radon
Uranium-238
Plutonium
its momentum is halved
its kinetic energy is halved
its acceleration is halved
its potential energy is halved
a unit of time
a unit of length
a year of no consequence
illumination throughout the year
warm and moist
cool and dry
warm and dry
cool and moist
the loudness of the sound increases
the loudness remains the same
the loudness decreases
the sound suddenly stops
turbulence caused by the wind
buoyancy of air
unequal pressures acting on it
sudden change in the direction of the wind
U-234
U-235
U-238
Both (b) and (c)
10-10 cm
10-12 cm
10-13 cm
10-16 cm
light travels very much faster than sound
sound travels faster than light
lightning occurs nearer than thunder
both travel at the same speed
a neutron star
a binary star
a dwarf star
a polar star
glass allows the heat radiations of shorter wavelengths from the sun to pass through
the plants absorb them - these shorter wavelengths - and reradiate them in the form of longer wavelengths
the longer wavelengths cannot penetrate through the glass walls
All the above
the material of the wire
the length of the wire
the cross section of the wire
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
goes straight through without bending
gets deviated away from the normal
gets bent towards the normal
gets reflected
maximum at the equator
minimum at the equator
minimum at the poles
the same everywhere
cohesive
centrifugal
frictional
gravitational
light energy into electrical energy
electrical energy into light energy
magnetic energy into electrical energy
electrical energy into mechanical energy
increases
decreases
remains the same
is constant