1. Explain
how electric bulb works.
2 .Show
the relationship between acceleration and mass of a body.
3. A
person carrying a bag of 25 kg climbs up to a height of 5 m in 30 seconds.
Calculate the power delivered by him to the bag.
4. Certain force acting on 35 Kg mass
changes it velocity from 6 m/s to 9 m/s. Calculate the raise in K.E. for that
body.
5. Write any four uses of spherical mirrors.
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