Question

find the power of a concave lens of focal length 2 metre​

Answer 1

Answer:

1/2

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Power = 1/focal length

Dekho mai yeh use krunga (formula)

D = 1/2 = 0.5

Yeh concave mirror hai isleye iske power + 0.5 hogi