Concept explainers
If intensity of light from laser, follow inverse square distance.
Answer to Problem 25Q
Solution:
Yes, light from laser follow inverse square distance.
Explanation of Solution
Given:
Electrons orbiting inside the atom.
The light from laser is directional in nature unlike the ordinary light. A point source produces light in all direction and hence for intensity of light from the point source, the area of sphere around the point source at the centre is considered. For the light from laser, the area of square is considered since it is directional in nature.
Chapter 28 Solutions
Physics: Principles with Applications
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