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PYQs/Physics/Units and Measurements

Physics2022easy

Units and Measurements

Plane angle and solid angle have:

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Units and Measurements

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A force defined by F = $\alpha t^2$ + $\beta t$ acts on a particle at a given time t. The factor which is dimensionless. If $\alpha$ and $\beta$ are constants, is:

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 X = $\frac{A^{2}B^{\frac{1}{2}}}{C^{\frac{1}{3}}D^{3}}$ , will be

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

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