In the 25 ft Space Simulator facility at NASA’s Jet Propulsion Laboratory, a bank of overhead arc lamps can produce light of intensity 2500 W/m2 at the floor of the facility. (This simulates the intensity of sunlight near the planet Venus.) Find the average radiation pressure (in pascals and in atmospheres) on (a) a totally absorbing section of the floor and (b) a totally reflecting section of the floor. (c) Find the average momentum density (momentum per unit volume) in the light at the floor.
In the 25 ft Space Simulator facility at NASA’s Jet Propulsion Laboratory, a bank of overhead arc lamps can produce light of intensity 2500 W/m2 at the floor of the facility. (This simulates the intensity of sunlight near the planet Venus.) Find the average radiation pressure (in pascals and in atmospheres) on (a) a totally absorbing section of the floor and (b) a totally reflecting section of the floor. (c) Find the average momentum density (momentum per unit volume) in the light at the floor.
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In the 25 ft Space Simulator facility at NASA’s Jet Propulsion
Laboratory, a bank of overhead arc lamps can produce light of intensity
2500 W/m2 at the floor of the facility. (This simulates the intensity of
sunlight near the planet Venus.) Find the average radiation pressure (in
pascals and in atmospheres) on (a) a totally absorbing section of the
floor and (b) a totally reflecting section of the floor. (c) Find the average
momentum density (momentum per unit volume) in the light at the
floor.
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