Units and Measurement questions
875 published questions with worked solutions.
- The number of significant figures in all the given numbers 25.12, ,2009, ,4.156 and 1.217 10^ -4 is
- When a wave traverses a medium, the displacement of a particle located at x at a time t is given by y=a (bt-cx), where a,b and c...
- The unit of percentage error is
- 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 length of a cylinder is measured with a metre rod having a least count of 0.1 ,cm. Its diameter is measured with vernier...
- A vernier callipers has 1 ,mm marks on the main scale. It has 20 equal divisions on the vernier scale which match with 16 main...
- A screw gauge gives the following reading when used to measure the diameter of a wire: Main scale reading: 0 ,mm; Circular scale...
- In an experiment, the angles are required to be measured using an instrument. 29 divisions of the main scale exactly coincide...
- In an experiment, the following observations were recorded: L=2.820 ,m, M=3.00 ,kg, diameter d=0.041 ,cm and extension l=0.087...
- In the context of accuracy of measurement and significant figures in expressing results of an experiment, which of the following...
- A spectrometer gives the following reading when used to measure the angle of a prism: Main scale reading: 58.5 degree; Vernier...
- In a vernier callipers, one main scale division is x ,cm and n divisions of the vernier scale coincide with (n-1) divisions of...
- In the determination of Young's modulus (Y= 4MLg d^2 ) by using Searle's method, a wire of length L=2 ,m and diameter d=0.5 ,mm...
- The number of significant figures in 23.023, 0.0003 and 2.1 10^ -3 are respectively
- A wire has a mass 0.3 0.003 ,g, radius 0.5 0.005 ,mm and length 6 0.06 ,cm. The maximum percentage error in the measurement of...
- The values of two resistors are R_1=(6 0.3) ,k and R_2=(10 0.2) ,k . The percentage error in the equivalent resistance when they...
- A physical parameter a can be determined by measuring the parameters b,c,d and e using the relation a= b^ c^ d^ e^ . If the...
- Which of the following combinations have the dimensions of time? (L,C,R represent inductance, capacitance and resistance...
- If L,C,R represent inductance, capacitance and resistance respectively, the combination(s) having the dimensions of frequency are
- The pair(s) of physical quantities that have the same dimensions is (are) **[IIT JEE 1995]**
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