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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- When one of the slits of Young’s experiment is covered with a transport sheet
- In Young’s double silt experiment if the distance between the two slits
- For a normal eye, the cornea of eye provides a converging power 40 D and the least
- A particle having a mass of 10⁻² kg carries a charge of 5 x 10⁻⁸C
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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