Conquer April Attempt: Unit and Measurement - (23-03-2021)

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Question 1

The unit of permittivity of free space, ,is.

• ACoulomb/newton-meter
• Bnewton-meter²/coulomb²
• CCoulomb²/newton-meter²
• DCoulomb²/(newton-meter)²

Question 2

The unit of Stefan's constant is:

• AW – m² – K⁴
• BW – m² / K⁴
• CW / m² – K
• DW / m² – K⁴

Question 3

From the following pairs, choose the pair that does not have identical dimensions.

• AAngular momentum and Planck's constant
• BMoment of inertia and moment of force
• CWork and torque
• DImpulse and momentum

Question 4

Dimensional formula of electric potential is

• A[MLT^–2A^–1]
• B[ML²T^–3A]
• C[ML²T^–3A^–1]
• D[ML²T^–3A^–2]

Question 5

Chandra Shekhar limit is unit of :

• ADistance
• BTime
• CMass
• DTemperature

Question 6

The physical quantities not having same dimensions are

• Atorque and work
• BLinear momentum and Planck’s constant
• Cstress and Young’s modulus
• Dspeed and (μ₀ε₀)^−1/2

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