Which of the following concentrates sunlight onto a focal point? Options: A . &nbspPlane mirrors B . &nbspParabolic mirrors C . &nbspSilver coated surface D . &nbspBlack surface

Which of the following concentrates sunlight onto a focal point?

Question

Which of the following concentrates sunlight onto a focal point?

Options:

A . Plane mirrors

B . Parabolic mirrors

C . Silver coated surface

D . Black surface

Answer: Option B
Answer: (b).Parabolic mirrors

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