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प्रश्न
Fill in the blank
Green plants convert _________ energy into chemical energy.
उत्तर
Green plants convert light energy into chemical energy.
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संबंधित प्रश्न
State the energy changes in the following case while in use:
A ceiling fan
State the energy changes in the following while in use A loudspeaker .
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in the burning of a match stick.
State the energy changes in the following case while in use:
a steam engine
State the energy changes in the following case while in use:
Microphone
State the energy changes in the following case while in use:
Bio-gas burner
A rocket is moving up with a velocity v. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?
A boy is moving on a straight road against a frictional force of 5 N. After travelling a distance of 1.5 km he forgot the correct path at a roundabout (Fig. 11.1) of radius 100 m. However, he moves on the circular path for one and half-cycle and then he moves forward up to 2.0 km. Calculate the work done by him.
Can any object have mechanical energy even if its momentum is zero? Explain.
Is it possible that an object is in a state of accelerated motion due to external force acting on it, but no work is being done by the force? Explain it with an example.
