Light - Study Mode
[#416] When a ray of light enters a glass slab, then
Correct Answer
(C) frequency does not change
[#417] Reading glasses are made from which type of lenses?
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(B) Convex
[#418] In optics, the refractive index of a substance is described by the formula $$n = frac{c}{v}$$ , where c is
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(D) the speed of light in vacuum
[#419] In which direction the rainbow is seen at 12 noon?
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(D) It cannot be seen
[#420] Which of the following statements is true when we see rainbow?
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(B) The Sun remains behind us and we face the raindrops