Which of the following is not a fossil source of energy?
kerosene oil
cow-dung cakes
CNG
coal
A good fuel is one which possesses
high calorific value and low ignition temperature
high calorific value and high ignition temperature
high calorific value and moderate ignition temperature
low calorific value and moderate ignition temperature
The source of energy of the sun is :
conversion of hydrogen gas into helium
conversion of carbon fuel into carbon dioxide
burning of hydrogen gas present in the sun
disintegration of uranium into barium and krypton
An uncontrolled nuclear chain reaction forms the basis of
nuclear power plant
hydrogen bomb
thermal power station
atom bomb
The system or device which converts radiant energy of the sun directly into electric energy
Solar cell
Solar cooker
Tidal power plant
Thermal power plant
The ultimate source of energy stored in fossil fuels is
moon
earth
sun
sea
One atomic mass unit (u) is equivalent to an energy of
931 eV
9.31 MeV
1 MeV
931 MeV
An example of a renewable source of energy is
petrol
natural gas
biogas
kerosene
The 'coolants' which can be used in the reactor of a nuclear power station are
liquid mercury and nitrogen dioxide
liquid sodium and carbon dioxide
liquid ammonia and carbon monoxide
liquid boron and uranium oxide
Which of the following substance can be used to construct a solar cell ?
Silicon
Germanium
Silver
Platinum
