Units and Measurement questions
875 published questions with worked solutions.
- The dimensions of a cone are measured using a scale with a least count of 2 mm. The diameter of the base and the height are both...
- A torque meter is calibrated to reference standards of mass, length and time each with 5% accuracy. After calibration, the...
- The one division of main scale of Vernier callipers reads 1mm and 10 divisions of Vernier scale is equal to the 9 division on...
- The SI unit of a physical quantity is pascal-second. The dimensional formula of this quantity will be :
- If L, C and R are the self-inductance, capacitance and resistance respectively, which of the following does not have the...
- A silver wire has a mass (0.6 0.006) g, radius (0.5 0.005) mm and length (4 0.04) cm. The maximum percentage error in the...
- Consider the efficiency of carnot's engine is given by = ( / ) _ e ( x/kT), where and are constants. If T is temperature, k is...
- In an experiment to find acceleration due to gravity (g) using simple pendulum, time period of 0.5 s is measured from time of 100...
- The dimensions of (B^ 2 / _ 0 ) will be – (if _ 0 : permeability of free space and B : magnetic field)
- Velocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v_ 2 = (n/m^ 2 )v_ 1 and a_ 2 = a_ 1 /(mn)...
- A student in the laboratory measures thickness of a wire using screw gauge. The readings are 1.22 mm, 1.23 mm, 1.19 mm and 1.20...
- Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Product of...
- Match List I with List II. List I: A. Torque B. Stress C. Latent Heat D. Power List II: I. Nms^ -1 II. J kg^ -1 III. Nm IV. Nm^...
- Given below are two statements : One is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) : Time...
- A travelling microscope has 20 divisions per cm on the main scale while its Vernier scale has total 50 divisions and 25 Vernier...
- The vernier constant of Vernier callipers is 0.1 mm and it has zero error of (−0.05) cm. While measuring diameter of a sphere,...
- In van der Wall equation [P + a/V^ 2 ][V - b] = RT; P is pressure, V is volume, R is universal gas constant and T is temperature....
- Two resistance are given as R_1 = (10 0.5) and R_2 = (15 0.5) . The percentage error in the measurement of equivalent resistance...
- Match List I with List II List-I: A. Torque B. Stress C. Pressure gradient D. Coefficient of viscosity List-II: I. ML^ -2 T^ -2...
- A cylindrical wire of mass (0.4 0.01)g has length (8 0.04) cm and radius (6 0.03)mm. The maximum error in its density will be -
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