Please select a subject first
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Nuclear fission is caused by the impact of
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Which of the following is used as a coolant in nuclear reactors?
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Which of the following has the least penetrating power?
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Which of the following is responsible for the energy released by stars?
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Which of the following are most penetrating?
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Old-written material, which cannot be read easily, can be read by
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Cryogenic engines find applications in
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What will happen if the star having a mass greater than five times the sun, is dead?
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A car is moving with high velocity when it takes a tum, a force acts on it outwardly because of
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What happens to the level of mercury in the barometer tube when it is taken down a coal mine? It
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A glass vessel is filled with water and a lid is fixed to it tightly. Then it is inside a freezer for hours. What is expected to happen?
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In a barometer, mercury is preferred over water because
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A bomb is dropped at a point from a moving aeroplane. The pilot observes that
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A Geostationary satellite
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In which of the following cases lies the broadcast band of FM?
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When light passes from air into a glass it experiences a change in
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Which of the following are the discoveries of Einstein?
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A convex mirror makes a good rear-view mirror for a car because
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The nuclides having the same number of neutrons but different number of protons or mass number are known as
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According to the law of conservation of energy,
1. energy can be created but not destroyed
2. energy can neither be created nor destroyed
3. energy can be transformed from one form to the other
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