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The mass of a mol of proton and electron is: (1) 6.023x 10 23 g (2) 1.008g and 0.55mg (3) 9.1x 10 -28 kg (4) 2gm Ans: (2) 1.008g and 0.55mg
Define the terms threshold frequency and stopping potential in relation to the phenomenon of photoelectric effect. How is the photoelectric current affected on enhancing the (i)
Q. How will you measure thickness of thin silicon-chip using Bi-prism experiment? Derive the formula used. When a thin silicon chip, thin film of soap bubble etc. is introduc
What is the essential effect of a magnetic field? Answer: A magnetic field is an imperceptible entity that exists in a region of space that may be void of all matter in th
If two soap bubbles of different radii are connected by a tube then, what happen? Ans) When these bubbles are joined through tube..the smaller bubble(with more pressure) gets its
All the given four Laws may be written in one relation, PV = nRT =m/n RT This formula is known as deal gas equation. Where m = mass of the gas M = molecular mass of t
To work out the gravitational potential energy of an object the equation is: GPE = m x g x h Where: m = the mass of the object (kg) g = gravitational field strength (on earth tha
Current time base generator
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) Momentum but not energy b) Neither momentu
What are the conditions to get interference pattern having good contrast in young's double slit experiment
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