Units and Measurement questions
875 published questions with worked solutions.
- (P+ V^2 )(V-b)=RT represents the equation of state of some gases. Where P is the pressure, V is the volume, T is the temperature...
- A Vernier calipers has 1 mm marks on the main scale. It has 20 equal divisions on the Vernier scale which match with 16 main...
- The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose...
- In the determination of Young's modulus (Y = 4MLg ld^2 ) by using Searle's method, a wire of length L = 2 m and diameter d = 0.5...
- The diameter of a cylinder is measured using a Vernier callipers with no zero error. It is found that the zero of the Vernier...
- Using the expression 2d sin θ = λ, one calculates the values of d by measuring the corresponding angles θ in the range 0 to 90°....
- Match List I with List II and select the correct answer using the codes given below the lists : List I P. Boltzmann constant Q....
- During Searle's experiment, zero of the Vernier scale lies between 3.20 10^ -2 m and 3.25 10^ -2 m of the main scale. The 20th...
- To find the distance d over which a signal can be seen clearly in foggy conditions, a railways engineer uses dimensional analysis...
- Consider a Vernier callipers in which each 1 cm on the main scale is divided into 8 equal divisions and a screw gauge with 100...
- Planck's constant h, speed of light c and gravitational constant G are used to form a unit of length L and a unit of mass M. Then...
- The energy of a system as a function of time t is given as E(t)=A^2 (- t), where =0.2 s ^ -1 . The measurement of A has an error...
- In terms of potential difference V, electric current I, permittivity _0, permeability _0 and speed of light c, the dimensionally...
- A length-scale (l) depends on the permittivity ( ) of a dielectric material, Boltzmann constant (k_B), the absolute temperature...
- In an experiment to determine the acceleration due to gravity g, the formula used for the time period of a periodic motion is T=2...
- A person measures the depth of a well by measuring the time interval between dropping a stone and receiving the sound of impact...
- Let us consider a system of units in which mass and angular momentum are dimensionless. If length has dimension of L, which of...
- Which one of the following physical quantity has the same unit as that of pressure ?
- The symbol of SI unit of inductance is H. It stands for
- Light year is a measure of
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