Question

Multiple Correct Answers Type
Which of the following pairs have different dimensions?

• A. Frequency and angular velocity
• B. Tension and surface tension
• C. Density and energy density.
• D. Linear momentum and angular momentum.

Answer 1

Answer: (B), (C), (D)

$\to$ $W=2\pi f$

$\to$ Tension is a force but

[surface tension] $=$ [Force $\times$ length]

$\to$ Density $=\frac{mass}{volume}$

Energy density $=\frac{Energy}{Volume}$

$\to$ Linear momentum $=$ mass $\times$ velocity

Angular momentum $=$ mass $\times$ velocity $\times$ distance