JEE Main 2026 Physics question
A point light source emits E.M. waves in free space. A detector, placed at a distance of L m, measures the intensity as I₀. The detector is now shifted to another location on the same spherical surface ensuring the angle between original location and new location as 45°. The measured intensity at new location will be .
Answer: (B)
Solution
A point source radiates isotropically, so intensity depends only on distance from the
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