Question : Direct conversion of solar energy with the use of a photo voltaic cell results in the production of
Option 1: Optical energy
Option 2: Electrical energy
Option 3: Thermal energy
Option 4: Mechanial energy
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Correct Answer: Electrical energy
Solution : The correct option is electrical energy.
The photovoltaic effect is a mechanism used by photovoltaic cells, also referred to as solar cells, to transform light energy from the sun directly into electrical energy. When photons, the light particles hit a solar cell's surface, their energy is transferred to the material's electrons, causing this effect. These electrons get activated by the energy of the photons, which causes them to flow as an electric current. The generated current can then be harnessed and used to power electrical equipment, or it can be stored in batteries for later use.
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Question : Conversion of sound energy into electrical energy is done by:
Option 1: Solar cell
Option 2: Gramophone
Option 3: Microphone
Option 4: Loudspeaker
Question : The process of photosynthesis involves conversion of
Option 1: chemical energy into radiant energy
Option 2: chemical energy into mechanical energy
Option 3: solar energy into chemical energy
Option 4: mechanical energy into solar energy
Question : The enormous amount of energy released in the explosion of an atomic bomb is due to the
Option 1: Conversion of mass into energy
Option 2: Conversion of chemical energy into heat energy
Option 3: Conversion of mechanical energy into nuclear energy
Option 4: Conversion of neutrons into protons
Question : What type of energy conversion takes place in a battery?
Option 1: Chemical energy into light energy
Option 2: Chemical energy into electrical energy
Option 3: Mechanical energy into chemical energy
Option 4: Chemical energy into sound energy
Question : Which of the following is used in solar cookers?
Option 1: Electrical supply
Option 2: Solar plate
Option 3: Mirror
Option 4: Electrochemical cell
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