Which combination of colour is the most convenient during day and night time?
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Physics GK · all questionsLight
Light
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Lenses with two focal lengths are used by persons suffering from . . . . . . . .
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Which one of the following statements regarding lenses is not correct?
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Consider the following statements.
1. If a person looks at a coin which is in a bucket of water, the coin will appear to be closer than it really is.
2. If a person under water looks at a coin above the water surface, the coin will appear to be at a higher level than it really is.
Which of the above statements is/are correct?
1. If a person looks at a coin which is in a bucket of water, the coin will appear to be closer than it really is.
2. If a person under water looks at a coin above the water surface, the coin will appear to be at a higher level than it really is.
Which of the above statements is/are correct?
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Due to atmospheric refraction, sunrise and sunset can be delayed by about . . . . . . . .
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A water tank appears shallower when it is viewed from top due to
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Light enters the eye from . . . . . . . .
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The process of glare resulting from a collision caused by a collision with particles floating in a fluid of light is called:
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The energies E1 and E2 of the two radiations are 25eV and 50eV respectively. The relation between their wavelengths i.e. λ1 and λ2 will be . . . . . . . .
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Who can be held responsible for the fact that the sun is visible 2 minutes before the actual sunrise and about 2 minutes after the actual sunset?
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Which of the following statements is correct with respect to the mirror equation?
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Short-sightedness in human eye can be corrected by using proper
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The Quantum Theory of light was given by-
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The phenomenon of deviation of light rays from their original path, when they pass from one medium to another, is called
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Which type of mirror is used in the headlights of vehicles?
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If the refractive index of water is , what will be the speed of light in water?
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If the focal length of a mirror is +15, it is:
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Which one of the following lenses should be used to correct the defect of astigmatism?
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Which one of the following statements is not correct?
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Which of the following angles are equal in case of plane mirror?
1. Angle of incidence
2. Angle of refraction
3. Angle of reflection
1. Angle of incidence
2. Angle of refraction
3. Angle of reflection
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