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Units And Measurement

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    MEDIUMneet

    In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively. Then the maximum percentage of error in the measurement X, where , will be 

    A

    B

    C

    D

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    HARDneet

    Planck's constant (), speed of light in vacuum () and Newton's gravitational constant () are three fundamental constants. Which of the following combinations of these has the dimension of length?

    A

    B

    C

    D

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    MEDIUMneet

    Taking into account of the significant figures, what is the value of ?

    A

    B

    C

    D

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    MEDIUMneet

    The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :

    A

    mgR

    B

    2 mgR

    C

    D

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    MEDIUMneet

    A physical quantity of the dimensions of mass that can be formed out of , and is is velocity of light, is universal constant of gravitation and is charge, is electrical permittivity ):

    A

    B

    C

    D

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