remains the same
increases
decreases
None of the above
B. increases
when the moon passes between the sun and the earth
when the sun comes between the earth and the moon
when the earth comes between the sun and the moon
on a full moon day
transverse
longitudinal
transverse and longitudinal
neither transverse nor longitudinal
increases
decreases
neither increases nor decreases
first increases then decreases
steel
wood
soft iron
copper
the hot water contains a much larger quantity of internal energy than the boiling water
the boiling water contains more quantity of internal energy than the warm water
both of them have got the same amount of internal energy.
nothing can be said definitely with the data given
refraction of light from them through air
reflection
absorption
All the above
Silver
Copper
Nichrome
Dry wood
in air
in an atmosphere of oxygen
in an atmosphere of CO2
in vacuum
to keep it away from the hot compressor which is near the bottom
because of convenience
so that it can cool the whole interior by setting up convection currents
to prevent too much cooling
increases
decreases
remains the same
first increases then decreases
alternating current of very high frequency
alternating current of very high voltage
a very large direct current
a high voltage direct current
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
increases
decreases
remains the same
first increases and then decreases
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
rubber
plastic
aluminium
wood
altimeter
anemometer
dilatometer
potentiometer
amplitude
vibration
frequency
phase
increase
decrease
remain unaffected
have its shape changed
enclosing it in a thick walled iron box
wrapping it with an insulator
by placing it inside a glass case
by surrounding it with fine copper gauze
it is practically inexhaustible
it is the cheapest form of energy
it does not cause pollution
All of the above
an ammeter
a rheostat
a voltmeter
a voltameter
Coulomb
Gilbert
Volta
Rutherford
equal to half its focal length
equal to its focal length
twice its focal length
not related to its focal length
Copernicus
Ptolemy
Newton
Kepler
the electrical attraction between the negatively charged electron and the positively charged porton
the high speed of the electron
the low speed of the electron
gravity
Silver
Copper
Nichrome
Dry wood
potential difference
resistance
current
All the above
as soon as he hears the report of the gun
the moment he sees the flash
either (a) or (b) since that makes no difference
None of the above
are electromagnetic waves
can easily pass through vacuum
are always transverse waves
require a material medium for propagation
increasing the length of the coiled wire
increasing current supply
increasing the size of the iron core
All the above