Explain why the raindrops are spherical?
Teachers Of Physics Latest Questions
An astronaut in orbit around the earth may feel weightless even when the earth’s gravitational field still acts on him. Explain
Why is efficiency of a machine is always less than 100% ?
A girl carries 20 litres in a Jerry can on her head and walks for 200 metres on a horizontal level ground. Explain why the girl does no work (Assume air resistance is negligible).