Which of the following pairs of physical quantities does not have same dimensional formula?
(a) Work and torque.
(b) Angular momentum and Planck’s constant.
(c) Tension and surface tension.
(d) Impulse and linear momentum.
Which of the following pairs of physical quantities does not have same dimensional formula?
(a) Work and torque.
(b) Angular momentum and Planck’s constant.
(c) Tension and surface tension.
(d) Impulse and linear momentum.
-
1 Answer
-
This is a multiple choice answer as classified in NCERT Exemplar
(c) (a) work =force [MLT-2] [L]= [ML2T-2]
Torque= force (distance)= [ML2T-2]
(b) angular momentum = mvr = [MLT-1] [L]= [ML2T-1]
Planck’s constant= E/V= [ML2T-2]/ [T-1]= [ML2T-1]
(c) tension=force= [MLT-2]
Surface tension = force/length= [MLT-2]/L= [ML0T-2]
(d) impulse =force (time)= [MLT-2] [T]= [MLT-1]
linear momentum = mass (velocity)= [M] [LT-1]
They both have different formula.
Similar Questions for you
According to question, we can write
Total moles of gas = n = nOxygen + nOxygen =
Volume of gas = 12 × 22.4 litre = 268.8 litre = 2.688 × 105 cm3
Viscosity = Pascal . Second
=
= x = 1, x + 2y = -1, -x + z = 1
y = -1, Z = 0
Viscosity = [P1A-1T0]
1 msD = 1mm
10 vsD = 9msD
1vsD = 0.9 MsD
L.C. = 1MSD – 1VSD = 1 – 0.9 = 0.1 mm
Zero error = 4LC = 0.4 mm
Reading = MSR + VSR + correction
= 4.1 cm + 6 * .01 cm + (-0.04 cm) = (4.1 + 0.06 – 0.04) cm
= 4.12 cm = 412 * 10-2 cm
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 688k Reviews
- 1800k Answers