For photoelectric effect to take place, the metal used as the cathode should have_________
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If a body is moving on a circular path, what is its average velocity if it completes one cycle in one second?
Anemometer is an instrument meant for measuring __________
When light passes from one medium to another, this phenomenon of change in its direction is called _____.
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.
The antiparticle of an electron is
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?
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