find the force exerted by it on the surface.

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A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 20 W of power, find the force exerted by it on the surface.
04
Sep
A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 20 W of power, find the force exerted by it on the surface. A beam of white light is incident normally on a plane surface absorbing 70% of the [...]
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