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Divit malik
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Asked: 2020-10-20T12:18:09+00:00 In:

Find the power of a concave lens of focal length 2 m.

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NCERT Solution for Class 10 Science Chapter 10
Light – Reflection and Refraction
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-184
Questions No-3

2020-2021cbsechapter 10class10light – reflection and refractionncertscience
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    2 Answers

    1. The power (P) of a lens is given by the reciprocal of its focal length (f) in meters. The formula for calculating the power of a lens is:

      P = f/1

      Given that the focal length (f) of the concave lens is 2 meters, you can substitute this value into the formula to find the power:

      P = 1/2
      ​
      So, the power (P) of the concave lens is 0.5 Dioptres. The positive sign indicates that it is a diverging lens (concave lens).

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    2. Get Hindi Medium and English Medium NCERT Solution for Class 10 Science to download.
      Please follow the link to visit website for first and second term exams solutions.
      https://www.tiwariacademy.com/ncert-solutions/class-10/Science/chapter-10/

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