WHAT IS THE POWER OF LENS? WRITE ITS SI UNIT.WRITE FORMULA SHOWS THE RELATION BETWEEN POWER OF LENS AND FOCAL LENGHT.
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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.
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Answer: Heya!!
Power of lens = 1/ focal length in meter. The lens used is a convex lens because the focal length is a positive value. The lens used is a concave lens because the focal length is a negative value.
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