Sound is a
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____ is used in periscope.
Definition of Force can be stated from:
If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?
What does the symbol R in electricity stand for ?
What happens to the Potential and Kinetic energies of a body as it falls down from a height?
Mirages are formed primarily due to ___ of light.
A charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5 V, the amount of work done is