Units and Measurement questions
875 published questions with worked solutions.
- The force is given in terms of time t and displacement x by the equation F = A cos Bx + C sin Dt The dimensional formula of AD B...
- Student A and Student B used two screw gauges of equal pitch and 100 equal circular divisions to measure the radius of a given...
- The acceleration due to gravity is found upto an accuracy of 4% on a planet. The energy supplied to a simple pendulum to known...
- In a Screw Gauge, fifth division of the circular scale coincides with the reference line when the ratchet is closed. There are 50...
- If 'C' and 'V' represent capacity and voltage respectively then what are the dimensions of , where C V = ?
- Identify the pair of physical quantities which have different dimensions.
- Identify the pair of physical quantities that have same dimensions :
- The maximum error in the measurement of resistance, current and time for which current flows in an electrical circuit are 1%, 2%...
- If momentum [P], area [A] and time [T] are taken as fundamental quantities, then the dimensional formula for coefficient of...
- Which of the following physical quantities have the same dimensions ?
- For z = a^ 2 x^ 3 y^ 1/2 , where 'a' is a constant. If percentage error in measurement of 'x' and 'y' are 4% and 12%...
- If Z = A^2B^3 C^4 , then the relative error in Z will be
- In a Vernier Calipers, 10 divisions of Vernier scale is equal to the 9 divisions of main scale. When both jaws of Vernier...
- In an experiment of determine the Young's modulus of wire of a length exactly 1 m, the extension in the length of the wire is...
- A travelling microscope is used to determine the refractive index of a glass slab. If 40 divisions are there in 1 cm on main...
- An expression for a dimensionless quantity P is given by P = _e ( kt x ); where and are constants, x is distance; k is Boltzmann...
- In a vernier callipers, each cm on the main scale is divided into 20 equal parts. If tenth vernier scale division coincides with...
- If velocity [V], time [T] and force [F] are chosen as the base quantities, the dimensions of the mass will be :
- The diameter of a spherical bob is measured using a vernier callipers. 9 divisions of the main scale, in the vernier callipers,...
- If the velocity of light c, universal gravitational constant G and Planck's constant h are chosen as fundamental quantities. The...
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