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If the radius of curvature of a concave mirror is 20 cm, its focal length is:

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Question

If the radius of curvature of a concave mirror is 20 cm, its focal length is:

Options

  • 10 cm

  • 20 cm

  • 40 cm

  • 80 cm

MCQ
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Solution

 10 cm

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Chapter 5: Light Energy - Objective Questions [Page 99]

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Selina Concise Physics [English] Class 8 ICSE
Chapter 5 Light Energy
Objective Questions | Q 4.07 | Page 99

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