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प्रश्न
Fill in the blank
Solar cells use the power supplied by the ______.
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उत्तर
Solar cells use the power supplied by the Sunlight.
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संबंधित प्रश्न
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
The calorific values of three fuels A, B and C are 33 kJ/g, 48 kJ/g and 150 kJ/g, respectively. A is solid, B is liquid and C is a gas at room temperature. One combustion, both A and B produce carbon dioxide while C explodes forming steam. B and C leave no residue after combustion while A leaves behind some solid residue. Which one of the three fuels is the most ideal? Give two reasons to support your answer.
Name any one hydrocarbon fraction obtained during the fractional distillation of petroleum which is used as a domestic fuel.
The main constituent of petroleum gas is:
(a) methane
(b) ethane
(c) butane
(d) propane
What is biomass? Give three examples of biomass.
Name the biomass which is still widely used as a source of heat energy in many household of our country.
Which of the following sources of energy are not derived from the sun?
Biomass, Wind, Ocean thermal energy, Geothermal energy, Nuclear fuels, Hydroelectricity, Wave energy, Coal, Petroleum, Tidal energy
The major component of biogas is:
(a) hydrogen
(b) butane
(c) hydrogen sulphide
(d) methane
One of the following is not required in the formation of biogas in a biogas plant. This is:
(a) cow-dung
(b) water
(c) oxygen
(d) anaerobic bacteria
The non-renewable source of energy among the following is:
(a) hydroelectricity
(b) sewage gas
(c) natural gas
(d) gobar gas
The gravitational pull of the moon cause the sea-water to rise periodically.
(a) What name is given to the condition of the sea when water to rise periodically.
(b) What name is given to the condition of the sea when its raised water recedes?
(c) What name is given to the energy which can be harnessed from this natural phenomenon?
(d) Draw labelled diagram to show how this energy can be harnessed from this natural
Renewable source of energy is :
State whether the following is True or False.
Coal and petroleum are renewable energy resources.
State whether the following is True or False.
The Sardar Sarovar Dam is built on the river Narmada.
Describe the four major types of coal.
Can you tell?
Why should we save energy?
Tidal energy is ______ type of energy.
In a hydro power plant ______.
Which among the following is the non-renewable resources?
Choose the incorrect statement regarding wind power
