Which among the following is incorrect pair of physical quantity and unit of measurement?

This question was previously asked in
SSC GD Constable (2022) Official Paper (Held On : 09 Feb 2023 Shift 3)
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  1. Power - Watt 
  2. Pressure - Newton
  3. Frequency - Hertz
  4. Energy - Joule 

Answer (Detailed Solution Below)

Option 2 : Pressure - Newton
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Detailed Solution

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The correct answer is Pressure - Newton (N).

Key Points

  • Pressure is measured in Pascal (Pa), which is the force per unit area.
    • 1 Pa is one newton per square meter (N/m2)
    • It is a scalar quantity.
  • Force is measured in Newton(N).
  • Energy is the capacity to do work and is measured in joules (J).
  • Power is the rate at which work is done or energy is transferred. It is measured in watts (W).
  • Frequency is the number of cycles per second and is measured in hertz (Hz).

Additional Information Some more physical quantities and their unit:

Physical Quantity SI Unit
Electric current Ampere(A)
Temperature Kelvin (K)
Luminous intensity Candela (cd)
Resistance  Ohm
Electric charge Coulomb(C)
Capacitance Farad(F)
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-> The Staff Selection Commission released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.

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