Question

How is a convex lens similar to a concave mirror? gd mrng ,how r u all ,have a nice day, take care❤​

Answer 1

Answer:

The equations we used for mirrors all work for lenses. A convex lens acts a lot like a concave mirror. Both converge parallel rays to a focal point, have positive focal lengths, and form images with similar characteristics. A concave lens acts a lot like a convex mirror.

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Gummoni...we r f9...ty

Explanation:

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Warm regards:Miss chikchiki

Answer 2

Explanation:

General Methods of Preparation of Haloalkanes

1. From Alcohols

In Groove’s method, ZnC12 is used to weaken the C-OH bond. In case of 3° alcohols, ZnC12 is not required.

The reactivity order of halogen acids is HI > HBr > HCl.

Darzen procedure is the best method for preparing alkyl halides from alcohols since both the by products (SO2 and HCl) are gaseous and escape easily.