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the measure of randomness of system is ...
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it is impossible to convert heat completely into work is the statement of ...
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one curie of radioactivity is equal to ...
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If the quantity of a radioactive element is doubled, the rate of disintegration is ...
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Half life of radium is 1580 years. Its average life will be ...
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The half life period of a radioactive element is 140 days. After 560 days, one gram of the element will be reduced to ...
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What is the half life of a radioactive substance if 87.5% of any given amount of substance disintegrates in 40 minutes? ...
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find the value of t1/2 in the previous question ...
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Initially 100 g of radioactive substance is taken. After 10 days 1 g is left, find the rate constant for the decay ...
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Radioactive decay follows the kinetics of ...
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gamma rays are ...
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The ionizing power is in the order ...
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penetrating power of γ-rays is ...
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the correct order of the effect of α,β,γ rays on photographic film is ...
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Which has maximum deflection in magnetic field? ...
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which has maximum kinetic energy? ...
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β-rays are same as ...
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α particles are identical with ...
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Evaporation of a liquid depends upon ...
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An aqueous solution of methanol has vapour pressure ...
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A liquid can exist only ...
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Pressure cooker reduces cooking time because ...
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Boiling point of a liquid is ...
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During evaporation of liquid ...
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vapour pressure of a liquid depends upon ...
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the melting point of water is ...
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Heat energy is zero in a substance at temperature of ...
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The boiling point of water in absolute scale of temperature is ...
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the particle constituents of matter have minimal kinetic energy at temp. of ...
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Hydrogen combines with fluorine in a 1:19 weight ratio to form hydrogen fluoride. If every molecule of hydrogen fluoride contains one atom of hydrogen and one atom of fluorine, an atom of fluorine must weigh: ...