Question

please answer this question...dont spam ..if do spam will be reported ....answer those 2 questions ​

Answer 1

Answer:

1)Focal length of plano convex lens when its radius of curvature of the surface is R and n is the refractive index of the lens.

2)The amount of energy released when 1gm of water at 0o freezes to ice is same as when the same amount of ice is melted into water i.e, each 1g will release heat energy equal to 334J on freezing as latent heat of Fusion of ice is L=334J/g.

Explanation:

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