What is meant by refraction of a wave?
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When a glass cylinder is filled with water and a piece of thick paper is placed at the mouth and the cylinder is inverted, the paper dies not fall. Why ?
When a string is placed on a slab of ice, the string passes through it.Why ?
our breath can produce current?
What is the shadows?
A bird sitting on a naked wire carrying current feels quite safe, but when the wire between his feet is cut and joined by a very long loop of wire, the bird dies. Why?
what is meant by vector atom model and what is the use of it?
Why a water pump raises water to a greater height at Bombay than at Simla
Explain about Sanitation
For measuring weight of 2cm3 piece of density 4gm/cm3 which spring balance is best suited what is the range and least count how we calculate
The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?
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What is the rectilinear propagation of light?
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