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Units and Measurements Test - 77

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Units and Measurements Test - 77
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  • Question 2
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    A wire has a mass 0.3 ± 0.003 g, radius 0.5 ± 0.005 mm and length 6 ± 0.06 cm. The maximum percentage error in the measurement of its density is
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    A student uses a simple pendulum of exactly 1m length to determined, the acceleration due to gravity. He uses a stop watch with the least count of 1 sec for this and records 40 seconds for 20 oscillations. For this observation, which of the following statement(s) is (are) true?
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  • Question 5
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    The SI unit of inductance, the henry can be written as
    a. Weber/ampere
    b. Volt-sec/amp
    c. Joule/(ampere)2
    d. Ohm-second
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  • Question 7
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    The pair of physical quantities that have the same dimensions, is (are)
    a. Reynolds number and coefficient of friction
    b. Latent heat and gravitational potential
    c. Curie and frequency of a light wave
    d. Planck\'s constant and torque
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  • Question 9
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    The dimensions of the quantities in one (or more) of the following pairs are the same. Identify the pair(s)
    a. Torque and work
    b. Angular momentum and work
    c. Energy and Young;s modulus
    d. Light year and wavelength
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  • Question 10
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    Which of the following combination have the dimensions of time? L, C, R represent inductance capacitance and resistance respectively?

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