Question

27. लेंस की शक्ति से क्या समझते हैं ? इसके मात्रक को लिखें।
What is power of Lens ? Write its unit.​

Answer 1

Answer:

Power of lens is known as the inverse of the focal length of the lens measured in meter(m). Power of lense = 1/ focal length in meter. The lense used is a convex lens because the focal length is a positive value. The lense used is a concave lens because the focal length is a negative value.

Explanation:

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