Light with an Average Intensity Of $683 \mathrm {~W} / \mathrm { m } ^ { 2 }$

question 26

Multiple Choice

Light with an average intensity of $683 \mathrm {~W} / \mathrm { m } ^ { 2 }$ falls on a black surface and is completely absorbed. What is the radiation pressure that the light exerts on this surface if it strikes perpendicular to the surface? $\left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

• A) \(205,000 \mathrm {~N} / \mathrm { m } ^ { 2 }\)
• B) \(4550 \mathrm { nN } / \mathrm { m } ^ { 2 }\)
• C) \(1140 \mathrm { nN } / \mathrm { m } ^ { 2 }\)
• D) \(2280 \mathrm { nN } / \mathrm { m } ^ { 2 }\)

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