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Find amplitude of electric field ina parallel beam of light of intensity 2W/m2Ans:Given that intensity I=power/area=2W/M2by using this formula :intensity I=(Emax^2/2c mue not)from that Emax=magnitude of electric fieldc=velocity of light=3*10^8m/secmue not =4pi*10^-7Emax=38.82 N/m
A charge is said to be in equilibrium, if total force performing on it is zero. A operation of charges is said to be in equilibrium if every charge is independently is equilibrium.
A bar magnet having of two equal and opposite magnetic pole separated by a small distance. Poles are not precisely at the last. The smallest distance among two poles is known as ef
Making a simple refracting telescope To make a simple telescope, two cardboard tubes will be needed, one fitting inside the other. It is not possible to make a satisfactory t
An athlete run a certain distance before taking a long jump. Why?
a catapult can hurl a rock straight up in the air 45 m high. What is the maximun range of the catapult?
The primary coil of an ideal step-up transformer has 100 turns and the transformation ratio is also 100. The input voltage the power are 220 V and 1100 W respectively. Calculat
Doppler effect (C.J. Doppler) Waves emitted through a moving object as attained by an observer will be blueshifted (compressed) if approaching, redshifted (elongated) if reced
how to standing waves formed in closed pipes
Q. Measure of elapsed period using the SI unit? Answer:- 1. This is the question that each true scientist dreads to be asked especially in a public setting by extremely in
Induction: The property of magnetism may be induced in a piece of material that does not normally have that characteristic. If a piece of soft iron is placed in the magnetic
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