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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asked Jan 7, 2021 210k views

2 votes

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

Physics
high-school

Malik Kurosaki asked

by Malik Kurosaki

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1 Answer

3 votes

Answer:

Step-by-step explanation:

-vesign shows the lens is CONCAVE

f=1/power

EsbenB answered Jan 12, 2021

by EsbenB

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