1.
The number of significant digits in 234000 and 1.000 is respectively
2.
Which of the following pairs does not have same dimensions?
3.
Which of the following is not equal to watt?
4.
The equation of a wave is given by y = a sin ω (x/v-k), ω is the angular velocity and v is the linear velocty, x is the distance. The dimensions of k will be
5.
If the energy (E), velocity (v) and force (F) be taken as fundamental quantities, then the dimensions of mass will be
6.
The ratio of the dimensions of Plank's constant and that of the moment of inertia is the dimension of
7.
Which of the following sets cannot enter into the list of fundamental quantities in any system of units?
8.
A physical quantity A is dependent on other four physical quantities p, q, r and s as given by A = √(pq)/r²s³. The percentage rror of measurement in p, q, r and s are 1%, 3%, 0.5% and 0.33% respectively, then the maximum percentage error in A is:
9.
The mass of a ball is 1.76 kg. The mass of 25 such balls is:
10.
The number of significant figures in 6.0023 are
11.
The length and breadth of a metal sheet are 3.124 m and 3.002 m respectively. The area of this sheet up to correct significant figure is:
12.
If percentage error in measurement of a radius of a sphere is 1%, what will be the error in measurement of volume?
13.
A force F is applied on a square plate od side L. If the percentage error in the measurement of L is 2 % and in F is 4 %, what is the permissible error in pressure?
14.
Calculate the equivalent resistance of two resistors R₁ and R₂ in parallel where R₁ = (6 ± 0.2) ohm and R₂ = (3 ± 0.1) ohm.
15.
Round to the appropriate number of significant digits: 13.214 + 234.6 + 7.0350 + 6.38
16.
Simplify and round to the appropriate number of significant digits: 16.235 x 0.217 x 5
17.
A force is given by F = at + bt², where t is the time. The dimensions of a and b are
18.
The physical quantity having the dimensions [M⁻¹L⁻³T³A²] is
19.
The respetive number of significant figures for the numbers 23.023, 0.0003 and 2.1 x 10⁻³ are
20.
Which of the following quantities is dimensionless?
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