Question

state the uses of concave mirror​

Answer 1

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It is used in the aircraft landing to guide the airplanes, it is used as a torch to reflect the light rays, it is used during shaving to get an erect and enlarged image of the face, etc. Some concave mirror uses are listed in the points below. Concave mirrors reflect light inward to one focal light.

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Answer 2

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive