If an object just begins to slide on a surface inclined at 30ºto the horizontal,the coefficient of friction is?
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2022
The mercury column in the barometer at notational atmospheric pressure has a height of?
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One of the following is a scalar quantity?
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A semiconductor is formed by?
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The main factor which affects the speed of sound wave is the?
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A train of mass 1600 kg attains a speed of 25 ms\(^{-1}\) in 20 seconds. The power developed in the engine is?
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What quantity of heat is required to convert 20 g of ice at 0 ºC to water at the same temperature? (Specific latent heat of ice = 336 Jg\(^{-1}\))
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The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?
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Which expression gives magnetic flux?
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The amount of energy required to change a kilogram of ice block into water without a change in temperature is?
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The gravitational pull on the moon is \(\frac{1}{6}\) that of the earth. If a body weighs 6.0 N on the moon,what will be the weight on the earth?
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The eclipse of the moon occurs when?
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In order to view the sun, the most suitable instrument to use is?
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Which component of fiber-optic connector has a provision of entry for the fibre along with the fixationto connector housing?
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In the formation of sea breeze, wind blows from?
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Which of these isa second-class lever?
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Water is not a good thermometric liquid because it?
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A reservoir is filled with liquid of density 2000 kgm\(^{-1}\). Calculate the depth at which the pressure in the liquid will be equal to 9100 Nm\(^{-2}\) (g = 10 ms\(^{-2}\))
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The potential energy in an elastic string of force constant k, which has an extension X is?