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The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field, is:
Options
(a) ML²T⁻²
(b) ML⁻¹T⁻²
(c) ML²T⁻¹
(d) MLT⁻¹
Correct Answer:
ML⁻¹T⁻²
Explanation:
1/2 ?￢ﾂﾀE² represents energy density i.e., energy per unit volume.
⇒ [ 1/2 ?￢ﾂﾀE² ] = ML²T⁻² / L³
= ML⁻¹T⁻²
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Question Type: Memory
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a thermodynamic system, working substance is ideal gas. Its internal energy
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- A U²³⁵ reactor generates power at a rate of P producing 2×10⁸ fission per second.
- A potentiometer wire of length L and a resistance r are connected in series with
- A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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