SATHEE: Physical World Units and Measurements

Physical World Units and Measurements - Result Question 12

12. The pair of quantities having same dimensions is [NEET Kar. 2013]

(a) Young’s modulus and energy

(b) impulse and surface tension

(d) work and torque

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Answer:

Correct Answer: 12. (d)

Solution:

(d) Work $=$ Force $\times$ displacement

$= [M L T^{- 2}] [L]$

$= [M L^{2} T^{- 2}]$

Torque $=$ Force $\times$ force arm

$\begin{aligned} = mass \times acceleration \times length \\ = [M] \times [L T^{- 2}] \times [L] = [M L^{2} T^{- 2}] \end{aligned}$

If dimensions are given, physical quantity may not be unique as many physical quantities have same dimensions. e.g., If the dimensional formula of a physical quantity is $[M L^{2} T^{- 2}]$ it may be work or energy or torque.

Physical World Units and Measurements - Result Question 12

12. The pair of quantities having same dimensions is [NEET Kar. 2013]

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Physical World Units and Measurements - Result Question 12

12. The pair of quantities having same dimensions is [NEET Kar. 2013]

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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