Pradeep Jogsan posted an Question
November 10, 2020 • 04:29 am 30 points
  • IIT JAM
  • Physics (PH)

An object of 2 cm height is placed at a distance of 30 cm in front of a concave mirror with radius curvature 40 cm. the height of the image is cm.

An object of 2 cm height is placed at a distance of 30 cm in front of a concave mirror with radius curvature 40 cm. The height of the image is cm.

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  • Neeraj bangruwa best-answer

    ans.

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    no it's postive for concave

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    focal length is positive

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    https://web.pa.msu.edu/courses/2000fall/phy232/lectures/lenses/review.html

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    read it , it will beneficial for you.

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    sir isme object C and f ke bich rkha hai toh image always down to principle axis but ans + kyu??

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    ans -4 cm hone chahiye????

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    how???? for concave lens the focal length is positive?? and negative for convex

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    I'm more confused after this

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