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प्रश्न
Give an example
Light energy changes to electrical energy.
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उत्तर
Solar cell
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संबंधित प्रश्न
The energy of a body is its capacity to do .........
Define 1 joule of energy.
What are the two kinds of mechanical energy?
What happens to the work done when the dispacement of body is at right angles to the direction of force acting on it? Explain your answer.
Name the physical quantity associated with the 'rate of doing work'.
Name two places in India where electricity is generated from nuclear power plants.
A force is applied on a body of mass 20 kg moving with a velocity of 40 ms−1. The body attains a velocity of 50 ms−1 in 2 seconds. Calculate the work done by the body.
Write the two main conditions are needed for work to be done?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
An engine is pulling a train.
