Q)
(chatquestion)...8:25 0
1 of 2
e
(3) 0.484
147. Two thin convex lenses of focal length 20 cm a
5 cm are placed 10 cm apart. The power of
combination of lenses is
glass
figure.
per of
(2) 15 D
(1) 10 D
(3) 20 D
148. The refractive index of the material of a equilat
(4) 25 D
varonika
14.02.20 at 6:52 PM
1 Answer
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