A 60-W Light Bulb Emits Spherical Electromagnetic Waves Uniformly in All

question 24

Multiple Choice

A 60-W light bulb emits spherical electromagnetic waves uniformly in all directions.If 50% of the power input to such a light bulb is emitted as electromagnetic radiation,what is the radiation pressure at a distance of 2.0 m from the light bulb?

• A)50 nPa
• B)2.0 nPa
• C)8.0 nPa
• D)16 nPa
• E)4.0 nPa

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