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Explain about the monochromaticity of laser.
Monochromaticity:
The light emitted through a laser is monochromatic, that is this is of one wavelength (colour). Although in case of ordinary light, several wavelengths of light are emitted. It is the properties of laser, which differentiate this from ordinary light.
If a particle is projected vertically upward in a constant gravitational field with an initial speed v 0 . If there is a retarding force proportional to the square of the instantan
The opposition offered to the circular motion of bodies like sphere, disc, ring, cylinder etc. on another surface is known as rolling friction.
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What is plane diffraction grating? How the wavelength of sodium light is measured?question #Minimum 100 words accepted#
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write a note on relative velocity.
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