When light passes from one medium to another, this phenomenon of change in its direction is called _____.
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In which form is the supplied heat energy stored during change in temperature of substance?
Find the work done (in J) when a charge of 10 C moves across a potential difference of 2 V.
If a body is moving on a circular path, what is its average velocity if it completes one cycle in one second?
A person lifts luggage of 20 kg from the ground and puts it on his head 2 in above the ground. Calculate the work done by him. (g = l0 )
Anemometer is an instrument meant for measuring __________
The antiparticle of an electron is
The absolute refractive index of any medium is always:
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