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A=2i+3j+k B=3i+2j+4k Find:1)A.B=? 2)A+B=?
in some case we take y=-g but in some case we take y=g... why???
A light object moves faster Mark off a half-metre on a table top with chalk. Separate this equally into centimetres. Secure a long rubber band and two spring clothes pegs. Atta
Time dilation (relativity of time) is the proper time interval is dilated when it is measured by an observer with reference to whom it has uniform velocity v This is known as
What is spontaneous emission? Explain in brief. Spontaneous emission: a. This is the process by that a light source as like an atom, molecule, nano-crystal or nucleus into a
What occures to the normal shift when the thickness of the optical medium is decreased? Write down the expression for equivalent focal length of combination of two thin lenses d
Electromagnetism: A temporary magnet formed by winding a coil of insulated copper wire around a piece of shift iron is known as electromagnet. When current is passed it behaves
The density of neutrons is of the order: (1)10 3 kg/ cc (2)10 6 kg/cc (3)10 9 kg/cc (4) 10 11 kg/cc Ans:(4) 10 11 kg/cc
You have answered a question · 7 mins ago ''The force of friction is required to move an object in space as there is no forece of attraction than how a satlite in space move around
Transistor: An active semi-conductor device with three terminals that is emitter base and collector is known as transistor. Types of Transistor: There are two types of
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