The dimensions of Plank’s constant are the same as that of
If power (P), surface tension (S) and Planck’s constant (h) are arranged so that the dimensions of time in their dimensional formulae are in ascending order, then which of the following is correct?
Which of the following sets have different dimensions?
If A = 2.331 cm, B = 2 cm, then A + B = ?
Checking the correctness of equations using the method of dimensions is based on
The number of significant figures in 0.06900 is
The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is
Which of the following pairs of physical quantities does not have same dimensional formula?
Which of the following measurements is most precise?
The mean length of an object is 5 cm. Which of the following measurements is most accurate?
The numbers 3.835 on rounding off to 3 significant figures will give
The respective number of significant figures for the numbers 6.320, 6.032, 0.0006032 are
The mass of a box measured by a grocer’s balance is 2.3 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. The total mass of the box is
In the question number 69, what is the difference in the masses of the pieces?
The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give
The unit of absolute permittivity is
If x=at+bt^2, where x is the distance travelled by the body in kilometre while t the time in seconds, then the units of b are
If x=at+bt2x = at + bt^2x=at+bt2, where:
then what are the units of bbb?
The unit of surface tension in SI system is
The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate. If the maximum error in the measurement of force and length are respectively 4% and 2%, The maximum error in the measurement of pressure is
The relative density of material of a body is found by weighing it first in air and then in water. If the weight in air is (5.00±0.05) Newton and weight in water is (4.00±0.05) Newton. Then the relative density along with the maximum permissible percentage error is
The period of oscillation of a simple pendulum in the experiment is recorded as 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s respectively. The average absolute error is
The length of a cylinder is measured with a meter rod having least count 0.1 cm. Its diameter is measured with venier calipers having least count 0.01 cm. Given that length is 5.0 cm. and radius is 2.0 cm. The percentage error in the calculated value of the volume will be
If there is a positive error of 50% in the measurement of velocity of a body, then the error in the measurement of kinetic energy is
Vernier scales of Vernier calipers has 50 divisions which coincide with 49 main scale divisions. Find the Vernier constant. Given: there are 20 main scale divisions cm-1.
- The legs of a spherometer are 5 cm apart. There are 10 division cm-1 on linear scale and circular scale has 100 divisions. The height h of a convex mirror measured is 2 MSD + 37 circular scales divisions. Find radius of curvature of convex mirror.
