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प्रश्न
Give one example when:
Chemical energy changes to light energy.
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उत्तर
During the burning of magnesium, chemical energy changes to light energy.
संबंधित प्रश्न
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
State whether a solar cell produces a.c. or d.c.
How much electric power is generated in India using the wing energy?
State two advantages of using wind energy for generating electricity.
State two advantages of using nuclear energy for producing electricity.
Name two examples in which the mechanical energy of a system remains constant.
Write the type of energy possessed in the following case:
A wound-up spring
Write the type of energy possessed in the following case:
A moving cricket ball.
State two advantages and disadvantages of using nuclear energy for producing electricity.
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
