When a ray of light travels from air to water, its speeds up.
22.The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the
same plane.
23.Image formed bya planemirroris always virtual and erect.
24.The principalfocus of a sphericalmirrorliesmidway between the pole and centre of curvature
true or false
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it will not increase the speed
Explanation:
air is rarer m3edium and water is denser medium
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Answer:
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