Energy density of sunlight is normally incident on the surface of a solar panel

PHYSICS · Single correct · CBSE · Physics · Electromagnetic Waves · Electromagnetic Waves

Problem

50 W/m250 \text{ W/m}^2 energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m21\text{m}^2 surface area will be close to (c = 3×108 m/s3 \times 10^8 \text{ m/s} ) (1) 15×10−8 N15 \times 10^{-8} \text{ N} (2) 20×10−8 N20 \times 10^{-8} \text{ N} (3) 10×10−8 N10 \times 10^{-8} \text{ N} (4) 35×10−8 N35 \times 10^{-8} \text{ N}

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