Suitable unit for universal constant of gravitation is -
The kilowatt hour is a unit of
The dimensional formula of kinetic energy is the same as that of -
The frequency of vibration f of a mass m suspended from a spring of spring constant k is given by relation of the type f = cmxky, where c is a dimensionless constant. The values of x and y are -
The dimensional formula of [ML–1T –2] does not represent the following -
The physical quantity that has no dimensions is-
The quantity having dimensions – 2 in the time is -
A pendulum clock, designed to give correct time in planes, gives incorrect time at hill station. Type of error in measurement of time can be -
In acertain system of units, 1 unit of time is 5 sec, 1 unit of mass is 20 kg and unit of length is 10 m. In this system, one unit of power will correspond to -
If the unit of length be doubled then the numerical value of the speed of light in vacuum will become (with respect to present value) -
A rectangular plate has length (4 ± 0.04) cm and width (2 ± 0.02) cm. The maximum percentage error in the measurement of its area is –
Error in the measurement of radius of a sphere is 2%. Then error in the measurement of volume is -
The maximum error in the measurement of mass and length of the side of a cube are 2% and 1% respectively. The maximum error in its density is-
The percentage errors in measurement of mass and speed are 3 % and 2% respectively. The error in kinetic energy will be-
Which of the following sets cannot serve as the fundamental quantities in any system of units ?
There is an error of 2% in the measurement of side of a cube. The percentage error in the calculation of its volume will be -
The measured mass and volume of a body are 22.42 g and 4.7 cm3 With possible errors of 0.01 g and 0.1 cm3 in mass and volume, the maximum error in the calculated density is approximately-
A student measures quantities a, b and c and then calculates S by the formula S = ab2/c3. If the error in a, b, c are 1%, 3% and 2% respectively, the maximum error in S can be–
Which of the following quantities has unit newton per meter (N m–1)?
Which of the following is dimensional constant?
The density of wood is 0.5 g cm–3 in cgs system of units. The corresponding value of SI units is
The expression [ML–1T–1] represents
Energy per unit volume represents
Which of the following is not a unit of energy?
