Units and Measurement questions
875 published questions with worked solutions.
- Dimensions of impulse are same as that of [DCE 2006]
- [ML^2T^ -2 ] are dimensions of [DCE 2004]
- Names of units of some physical quantities are given in Column-I and their dimensional formulae are given in Column-II. Match the...
- The velocity of a particle v at an instant t is given by v=at+bt^2. The dimension of b is
- The dimensions of electric dipole moment are
- The dimensions of electric potential are [UP SEE 2003]
- If C, R, L and I denote capacity, resistance, inductance and electric current respectively, the quantities having the same...
- If C is capacitance and q is charge, then the dimension of q^2/C is same as that of [OJEE 2005]
- If force is proportional to the square of velocity, then the dimensions of the proportionality constant are [OJEE 2007]
- In an experiment the angles are required to be measured using an instrument. 29 divisions of the main scale exactly coincide with...
- 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 student performs an experiment to determine the Young's modulus of a wire, exactly 2 m long, by Searle's method. In a...
- A screw gauge gives the following reading when used to measure the diameter of a wire: Main scale reading: 0 ,mm; Circular scale...
- The circular scale of a screw gauge has 50 divisions and pitch of 0.5 ,mm. Find the diameter of a sphere. Main scale reading is...
- The number of significant figures in all the given numbers 25.12, 2009, 4.156 and 1.217 10^ -4 is
- A student has measured the length of a wire equal to 0.04580 ,m. This value of length has the number of significant figures equal...
- 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...
- A physical quantity is given by X=[M^aL^bT^c]. The percentage errors in measurement of M,L and T are , and respectively. The...
- The percentage errors in the measurement of length and time period of a simple pendulum are 1% and 2% respectively. Then the...
- 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...
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