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प्रश्न
Name two places in India where electricity is generated from nuclear power plants.
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उत्तर
(i) At Kalpakkam in Tamil Nadu, and
(ii) At Narora, in Uttar Pradesh.
संबंधित प्रश्न
What are the quantities on which the amount of work done depends? How are they related to work?
A boy tries to push a truck parked on the roadside. The truck does not move at all. Another boy pushes a bicycle. The bicycle moves through a certain distance. In which case was the work done more : on the trick or on the bicycle? Give a reason to support your answer.
Define Translational motion.
State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.
In what way does an ‘Ideal machine’ differ from a ‘Practical machine’?
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.
A coolie is pushing a box weighing 1500 N up an inclined plane 7.5 m long on to a platform, 2.5 m above the ground.
(i) Calculate the mechanical advantage of the inclined plane. (ii) Calculate the effort applied by the coolie.
(iii) In actual practice, the coolie needs to apply more effort than what is calculated. Give one reason why you think the coolie needs to apply more effort.
What is work?
A man squatting on the ground gets straight up and stand. The force of reaction of ground on the man during the process is ______.
State whether work is done or not, by writing yes or no, in the following case:
A boy climbs up 20 stairs.
