Which of the following substance can be used to construct a solar cell ?
Silicon
Germanium
Silver
Platinum
The ultimate source of energy stored in fossil fuels is
moon
earth
sun
sea
A non-renewable source of energy is
wood
alcohol
hydrogen gas
natural gas
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
One MeV of nuclear energy is equivalent to
1.6 x 10-13J
1.6 x 10-19J
1.6 x 10-16J
1.6 x 10-15J
An uncontrolled nuclear chain reaction forms the basis of
nuclear power plant
hydrogen bomb
thermal power station
atom bomb
Which of the following is not an example of a bio-mass energy source?
gober gas
nuclear energy
coal
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
One atomic mass unit (u) is equivalent to an energy of
931 eV
9.31 MeV
1 MeV
931 MeV
The disposal of wastes produced in a nuclear power plant poses a big problem because it is
too heavy
highly inflammable
extremely foul smelling
highly radioactive
