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प्रश्न
Name the quality which is measured in eV
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उत्तर
Energy is meaused in eV
संबंधित प्रश्न
Name the quality which is measured in kWh.
A boy weighing 350 N climbs up 30 steps, each 20 cm high in 1 minute, Calculate:
- the work done and
- power spent.
Name the quality which is measured in kW.
What do you mean by equilibrium of a body?
A boy takes 3 minutes to lift a 20 litre water bucket from a 20 m deep well, while his father does it in 2 minutes.
How much work each does? Take density of water = 103 kg m-3 and g = 9.8 N kg-1.
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.
Relate 1 KWh (kilowatt hour) with joule.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A person climbs a ladder.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A car in neutral gear is coming down the slope.
