ML2T-2 is the dimensional formula for
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Solar eclipse will take place when
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Isotopes of an element contain
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One watt-hour is equivalent to
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Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
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In which of the following industries is mica as a raw material?
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Radiocarbon dating technique is used to estimate the age of
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Identify the vector quantity from the following
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Large astronomical telescopes always use as objective
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One should not connect a number of electrical appliances to the same power socket because
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Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
- I.Diffusion
- II.Refraction
- III.Internal reflection
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Natural radioactivity was discovered by
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Planets are
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One nanometer is equal to
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Mica is used in electrical appliances such as electric iron because mica is
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It is easier to roll a barrel full of coal tar than to pull it because
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Minimum number of unequal vectors which can give zero resultant are
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Intensity of sound has
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Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from
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An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is
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