Units and Measurement questions
875 published questions with worked solutions.
- Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of current I,...
- Which two of the following five physical parameters have the same dimensions? (a) energy density (b) refractive index (c)...
- If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be
- If the dimensions of a physical quantity are given by M^ a L^ b T^ c , then the physical quantity will be:
- A student measures the distance traversed in free fall of a body, initially at rest, in a given time. He uses this data to...
- The dimension of 1 2 _0 E^2, where _0 is permittivity of free space and E is electric field, is
- The density of material in CGS system of units is 4 g/cm ^3. In a system of units in which unit of length is 10 cm and unit of...
- The dimensions of ( _0 _0)^ -1/2 are :
- The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are
- In an experiment four quantities a, b, c and d are measured with percentage error 1 %, 2 %, 3 % and 4 % respectively. Quantity P...
- If force (F), velocity (V) and time (T) are taken as fundamental units, then the dimensions of mass are
- If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension...
- A physical quantity of the dimensions of length that can be formed out of c, G and e^2 4 _0 is [c is velocity of light, G is...
- A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm . The main scale reading is 5...
- 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%...
- According to Boyle's law the product PV remains constant. The dimension of PV are same as
- A quantity P is related as X^ -2 Y^ -3/2 Z^ 2/5 where X,Y,Z are independent parameters which have fractional errors of 0.1, 0.2...
- The period of oscillation of a simple pendulum is given by T = 2 l g where l is about 80 cm and is known to have 0.1 cm accuracy....
- According to Boyle's law, the product pV remains constant. The unit of pV is same as that of
- The length of a cylinder is measured with a meter rod having least count 0.1 cm. Its diameter is measured with vernier calipers...
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