Physics · Optics
According to Lambert's cosine law, the illumination at any point on a surface illuminated by a source of light, with light rays inclined at an angle θ to the normal at that point, varies directly as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cos2(θ)
- 2cos3(θ)
- 3cos(θ)✓
- 41/cos(θ)
Correct answer
cos(θ)
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