what is ment by power of lens . you have three lens l1 ,l2 ,l3 of power +10D , +5D , -10D . state the nature and focal length of each lens . explain which of the three lens will form a virtual and magnified image of an object place at 15cm . from the lens . draw the ray diagram in spot of our answer.
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the capability of a lense to coverge or diverge a parallel light ray is known as power of a lense.
1 and 2 lense is convex and 3 is concave.
1 and 2 lense is convex and 3 is concave.
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Power of a lens is reciprocal of its focal length (in meters).
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