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There exist two types of charges in nature:-
(i) Positive charge
(ii) Negative charge
Charges with the same electrical sign repel each other, and charges with opposite electrical sign attract to each other.
compton effect and quantum nature of light
An object moving with a speed better than the speed of sound is called to be move with a supersonic speed.
Rayleigh criterion; resolving power: A criterion for finding out how finely a set of optics might be able to distinguish. It start with the supposition that central ring of on
a. State the Faraday's laws of electromagnetic induction. b. A conducting circular loop is placed in an uniform magnetic field B=0.020 T with its plane perpendicular to the fi
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
What is Eclipses? Sun is a luminous body while earth and moon are non-luminous bodies. Only those parts of moon on the light of sun falls is visible. Also sun is larger than, b
a) Two long wires, carrying currents i 1 and i 2 , are placed perpendicular to each other in such a way that they just avoid to contact. Determine the magnetic force on a small le
A boy is standing on an elevator which is travelling downward with constant velocity of 30 meters per second. The boy throws a ball vertically upward with velocity of 10 meter
explain the construction and working of compound microscope
The value of G, the universal gravitational constant, was measured experimentally by: a) Newton b) Cavendish c) Copernicus d) Kepler Ans: The value of th
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