Question

Focal length of mirror with roc 30 cm and refractive index 1.5

Answer 1

Answer:

15cm

Explanation:

Radius of Curvature = 30cm

⇒ R = 30cm

Wkt, R = 2f

⇒ 2f = 30cm

∴ f = 15cm

We do not have refractive index for mirrors..

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