Question
Easy
Which of the following pairs of units are used for measuring the same physical quantity ?
1
kg m/s$^2$, Nm
2
kgm$^2$/s$^2$, Ws
3
kg m/s$^2$, Ws
4
kg m$^2$/s$^2$, J/s
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Work, Energy, and Power
Topic: Energy
Correct Answer
Option B
Explanation
Option 2 is the correct answer because both units, kgm$^2$/s$^2$ and Ws, are used to measure energy. 1. Explanation for Option 2: - kgm$^2$/s$^2$: This is the unit of energy known as the joule (J) in the International System of Units (SI). It is derived from the basic units of mass (kg), distance (m), and time (s). - Ws (Watt-second): This is also a unit of energy. One watt (W)…Read More
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