Power Of Lens
Easyphysics
Power P of lens in diopters is:
Select the correct option:
Solution
Incorrect! Answer:
P = 1/f(m)
Power (P) is the measure of the convergence or divergence that a lens introduces in the light rays falling on it.
- P=f1 where f is in meters.
- The SI unit is the Diopter (D).
- Converging (convex) lenses have positive power, and diverging (concave) lenses have negative power.
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About This Question
- Subject
- physics
- Chapter
- optics
- Topic
- power of lens
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
P = 1/f(m)
Power (P) is the measure of the convergence or divergence that a lens introduces in the light rays falling on it.
- P=f1 where f is in meters.
- The SI unit is the Diopter (D).
- Converging (convex) lenses have positive power, and diverging (concave) lenses have negative power.
This easy difficulty physics question is from the chapter optics, covering the topic of power of lens. It appeared in the 2025 exam.
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