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Units and Measu...

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  • Question 1
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    From the dimensional consideration, which of the following equation is correct ?

  • Question 2
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  • Question 3
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  • Question 4
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  • Question 5
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  • Question 6
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    The dimensions of e2 / 4πε0hc, where e, ε0, h and c are electronic charge, electric permittivity, Planck\'s constant and velocity of light in vacuum respectively

  • Question 7
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    If the radius of the sphere is (5.3 ± 0.1)cm. Then percentage error in its volume will be

  • Question 8
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    The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate. If the maximum error in the measurement of force and length are respectively 4% and 2%, the maximum error in the measurement of pressure is

  • Question 9
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    Assuming the mass of Earth as 6.64 × 1024 kg and the average mass of the atoms that make up Earth as 40u (atomic mass unit), the number of atoms in the Earth are approximately

  • Question 10
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