A helium-neon laser of the type often found in, Ask an Expert

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A helium-neon laser of the type often found in physicslaboratories has a beam power of 7.00 mW at a wavelength of 633 nm.The beam is focused by a lens to a circular spot whose effectivediameter may be taken to be equal to 2.00 wavelengths.

Calculate the intensity of the focused beam.

Calculate the radiation pressure exerted on a tiny perfectlyabsorbing sphere whose diameter is that of the focal spot.

Calculate the force exerted on this sphere.

Calculate the magnitude of the acceleration impartedto it. Assume a sphere density of 4.50×103kg/m3.

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Category:- Physics
Reference No.:- M91185469

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