Which of the following does not contribute to the sparking of diamonds?
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Physics GK · all questionsLight
Light
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If the focal length of a convex lens is 50 cm, then which one of the following is its power?
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Which of these travels in glass with minimum velocity?
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. . . . . . . . is not an example of refraction of light.
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Which one of the following is used for sunglasses?
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Red + Green + Blue = ?
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The speed of light will be minimum: while passing through
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How long does light take to reach the earth from the sun?
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Which of the following is not caused by atmospheric refraction of light?
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Which of the following is not a colour created from a combination of two primary colours ?
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Endoscope' used by the doctors for examining the inside of patient's stomach, works on the principle of
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Parabolic mirrors are used in
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Why does sky appear blue?
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In driving a car which type of mirror would you like to use for observing traffic at your back?
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Match the following lists.
| List-I | List-II |
| a. Reflection | 1. Twinkling effect of stars |
| b. Refraction | 2. Used for reducing glare |
| c. Interference | 3. Light added to light produces darkness |
| d. Polarisation | 4. Change in path of light without change in medium |
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The image formed on Retina is
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Hypermetropia or long-sightedness can be corrected by using
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For reproducing sound, a CD (Compact Disc) audio player uses a
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Which colour deviates the least when light passes through a prism?
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Tyndall effect is related to the . . . . . . . . of light.
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