The refractive index of water is 1.33. The speed of light in water will be
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The refractive index of transparent medium is greater than one because
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The nature of image formed by a convex mirror when the object distance from the mirror is less than the distance between pole and focal point (F) of the mirror would be
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The angle of incidence i and refraction r are equal in a transparent slab when the value of i is
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As light travels from a rarer to a denser medium it will have
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If a man’s face is 25 cm in front of concave shaving mirror producing erect image 1.5 times the size of face, focal length of the mirror would be
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The nature of the image formed by concave mirror when the object is placed between the focus (F) and centre of curvature (C) of the mirror observed by us is
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The image formed by concave mirror is real, inverted and of the same size as that of the object. The position of object should be
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An object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get
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The angle of incidence for a ray of light having zero reflection angle is
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A concave mirror of radius 30 cm is placed in water. It’s focal length in air and water differ by
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An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is
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