11 Physics Ch-1: Units and Measurement

The number of significant digits in 257000 and 2.000 is respectively

Which of the following pairs does not have same dimensions?

Which of the following is not equal to joule?

The equation of a wave is given by y = a sin 2π(t/T-A/λ), T is the time period and λ is the wavelength, x is the distance and t in time. The dimensions of A will be

The dimensions of mass in terms energy (E), velocity (v) and force (F) will be

The ratio of the dimensions of Plank's constant and that of the time is

Which of the following is not in the list of fundamental quantities?

A physical quantity A is dependent on other four physical quantities p, q, r and s as given by A = √(pq)/r²s. The percentage error of measurement in p, q, r and s are 2%, 4%, 1% and 3% respectively. What is the maximum percentage error in A?:

The mass of a particle is 2.5 kg. The mass of 20 similar particles is:

The number of significant figures in 6.300 are

A metal sheet is 2.5 m long and 2.00 m wide. What is the area of sheet up to correct significant figure?:

If percentage error in measurement of a cube of each side L is 2%, what will be the error in measurement of its volume?

A rectangular plate of has length and breadth 2L and L/2 respectively. What is the permissible error in the stress if the force is applied on it? Given percentage error in the measurement of L is 1 % and in F is 2 %.

Find the equivalent resistance with error limit of two resistors R₁ and R₂ connected in series. Given R₁ = (6 ± 0.6) ohm and R₂ = (3 ± 0.3) ohm.

Round the sum to the appropriate number of significant digits as: 13.050 + 200.0 + 1.05 + 0.555

Solve the following with appropriate number of significant digits: 2.5 x 5.00 x 6

A force F is applied on a bodyas F = ax + bx², where x is the distance. The dimensions of a and b are

Name the physical quantity having the dimensions [MLT⁻¹].

Find the number of significant figures in the numbers as: 0.0003, and 1.300 and 7800

Which of the following is not dimensionless quantity?