State two uses of a concave lens.

1.	State two uses of a concave lens.
Answer» 1. A concave lens is used to correct myopia (nearsightedness). 2. In some optical instruments, a combination of a concave lens and a convex lens is used.

Answer»

1. A concave lens is used to correct myopia (nearsightedness).

2. In some optical instruments, a combination of a concave lens and a convex lens is used.

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