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Physics, 26.06.2020 15:01 smelcher3900

A device has power -2 D . The device is a. A convex lens of focal length 50 cm
b. A concave lens of focal length 50 cm
c. A convex lens of focal length 2 m
d. A concave lens of focal length 2 m

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A device has power -2 D . The device is a. A convex lens of focal length 50 cm
b. A concave l...

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