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प्रश्न
Fill in the blank
Green plants convert _________ energy into chemical energy.
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उत्तर
Green plants convert light energy into chemical energy.
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संबंधित प्रश्न
What are the various energy transformations that occur when you are riding a bicycle?
State the energy changes in the following case while in use:
An electric iron
State the energy changes that occur in the following :
The unwinding of a watch spring.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in a car going uphill.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in photosynthesis in green leaves.
Explain conservation of energy.
Can any object have momentum even if its mechanical energy is zero? Explain
The power of a motor pump is 2 kW. How much water per. the minute the pump can raise to a height of 10 m? (Given g = 10m s−2)
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
Define watt. Express kilowatt in terms of joule per second. A 150 kg car engine develops 500 W for each kg. What force does it exert in moving the car at a speed of 20 ms–1?
