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प्रश्न
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A green plant is carrying out photosynthesis.
एका वाक्यात उत्तर
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उत्तर
Photosynthesis is taking place in a green plant; no work is being done here because there is no direct displacement.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Work and Energy - Exercises [पृष्ठ १२४]
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संबंधित प्रश्न
State the S.I. unit of work and define it.
It takes 20 s for a person A of mass 50 kg to climb up the stairs, while another person B does the same in 15 s. Compare the work done.
State two disadvantages of producing hydroelectricity.
A man lifts a mass of 10 kg from the floor to a shelf 4 meter high. If g = 10 ms-2, what is the work done?
What are the quantities on which the work done depends?
Give two examples of work done.
What type of energy is possessed by a flowing water?
What is the amount of energy spent by the heart in pumping blood through the body?
Can we destroy every energy associated with a body?
Can two agents, doing the same work, have different power?
