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A neutrino is a fundamental particle of matter, meaning that it has no substructure (it can't be broken down further into components). It has a very low mass, so the gravitational force exerted on it and by ...

A quantity may be a scalar (just a magnitude, just a number) or a vector, with magnitude and direction. For example, speed is a measure of how fast something is going, but velocity is a measure of how fast s...

Kepler's third law states that the square of the period of any planet is proportional to the cube of its orbital radius.To derive it, two equations are required: F=GMm/r^2 and F = mv^2/r. These are Newtons l...

The photoelectric effect is one of the first pieces of experimental evidence of quantum mechanical phenomena. It describes how a material absorbs light and result in emission of electrons. Using a classical ...

Answer: 1.96 10 8 ms -1 .Snell's law tells us that n 1 sin(x 1 )= n 2 sin(x 2 ) where x is the angle of a light ray from the normal. Air can be assumed to have a refractive index of 1. Therefore, sin(x 1 ) =...