Question Detail

PHY 101 Physical Quantities And Units Objective Question
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Question

Which of the following physical quantities have no dimension? (i) Stress (ii) Strain (iii) Temperature (iv) Angular momentum (v) Angular amplitude (vi) Friction
Options
A i and iv
B ii and v
Correct Answer
C iv and vi
D i and v
Correct Answer

Option B is the correct answer.

Detailed Explanation

Strain (ΔL/L) is dimensionless. Angular amplitude (angle) is dimensionless. Stress has dimensions, temperature has dimension, angular momentum has dimensions, friction (force) has dimensions.

Hint

Look for ratios of same quantities or angles.

Question Info

Course: PHY 101
Topic: Physical Quantities And Units
Type: Objective
Difficulty: Not specified
Question 26 of 1250
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