Q.

The intensity of sun on earth is 1400 W/m2. Assuming earth to be a black body. Calculate radiation pressure?

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a

4.66 x 10-6 N/m2

b

7 x 10-6 N/m2 

c

1.4 x 10-6 N/m2

d

4.66 x 106 N/m2 

answer is C.

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Detailed Solution

Radiation pressure = I/c

Pressure = 14003 x 108=4.66 x 10-6N/m2

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The intensity of sun on earth is 1400 W/m2. Assuming earth to be a black body. Calculate radiation pressure?