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Q. What is Raman shift?
In 1928 Sir C.V. Raman fined out experimentally that the monochromatic light is scattered when it is allowed to pass through a substance. The scattered light contains several additional frequencies other than that of incident frequency. This is recognized as Raman Effect.
Q. A light of wavelength 6000 0 A falls normally on a thin air film, 6 dark fringes are seen between two points. Compute the thickness of the film. 2μt = nλ Thickness of t
Electrical energy: Electrical energy is the ability of an electrical system to do work. Energy is expended when work is done and the amount of energy used is equal to the wo
steradian; sr: The supplementary SI unit of solid angle described as the solid central angle of a sphere which encloses a surface onto the sphere equivalent to the square of t
does lights of different wavelengths help us to see different colour
Sound Waves and the Eardrum While a pressure wave reaches the ear and a series of high and low pressure regions impinge upon the eardrum. An arrival of a compression or high pr
A satellite has a mass of 5900 kg and is in a circular orbit 3.0 x 10 5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 x 1
Natural and forced vibrations When we strike a tuning fork with a rubber hammer it vibrates with certain frequency. The frequency does not change even if we hit it harder.
What are the applications of laser transitions? Applications of laser transitions: a. High coherence of light is helpful for measuring length precisely by interferometry or
A 0.040-kg bullet is fired into a 3.50-kg block of wood, which was initially at rest. The bullet remains embedded within the block of wood after the collision. The bullet
(i) On the average, particles are separated by a distance of the order of 10-10 m and exert a force of attraction of the order of 10-11 N on each other. (ii) The force of atta
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