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Physics And Measurement Questions
15 Practice QuestionsStart Practicing Now
- [Easy]Pitch of a screw gauge is 0.5 mm and circular scale has 50 divisions. Least count is:...
- [Medium]Q = A B where A = (5.0 ± 0.2) and B = (2.00 ± 0.05). Fractional error in Q is:...
- [Easy]1 erg equals how many joules?...
- [Easy]Velocity v = A t + B t^2. Dimensions of B are:...
- [Easy]Which pair correctly represents a derived physical quantity and its SI unit?...
- [Easy]Main scale division = 1 mm. 10 vernier divisions coincide with 9 main scale divisions. Least count is:...
- [Medium]Which combination has dimensions of pressure?...
- [Easy]What is the result when you convert 3.5×10^5 cm^3 to m^3?...
- [Easy]If gravitational potential energy between two masses is U = - G m_1 m_2 / r, what are dimensions of G?...
- [Medium]Number of significant figures in 0.0040700 is:...
- [Easy]Which is dimensionless?...
- [Medium]Five measurements of a time period: 2.13 s, 2.15 s, 2.11 s, 2.14 s, 2.12 s. Mean and absolute error (half range) are:...
- [Medium]Result of (3.20 + 0.457) / 2.0 with correct significant figures is:...
- [Medium]Earth's radius ≈ 6.37×10^6 m. Its order of magnitude is:...
- [Easy]Length of a rod measured with meter scale (least count 1 mm) is 52.6 cm. Absolute uncertainty (±) you quote is:...