a student uses a lens of focal length 40 cm and another of minus 20 CM write nature and power of each lens
Answers
Answered by
8
LensA is comvex lens & its power is 20 D.
LensB is concave lens & its power is 10 D.
LensB is concave lens & its power is 10 D.
ayyanar91g:
plz give eplanation
Similar questions