A perfectly reflecting solid sphere of radius r is kept in the path o

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A perfectly reflecting solid sphere of radius r is kept in the path of a parallel beam of light of large aperture. If the beam carries on intensity I, find the force exerted by the beam on the sphere.

A perfectly reflecting solid sphere of radius r is kept in the path of a parallel beam of light of large aperture. If the beam carries on intensity I, find the force exerted by the beam on the sphere.

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