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Match List-(I) with List-( II). List-(I) List-( II) a R_H (Rydberg constant) i kg m^-1 s^-1 b h (Planck's constant) ii kg m^2 s^-1 c μ _B (Magnetic…

JEE Main 2021 — Physics Mechanics

2021mcqeasy

Match List-(I)(I)(I) with List-(II)(\mathrm{II})(II).

List-(I)(I)(I)List-(II)(\mathrm{II})(II)
aRH{R}_{H}RH​ (Rydberg constant)ikgm−1s−1\mathrm{kg}{m}^{-1}{s}^{-1}kgm−1s−1
bhhh (Planck's constant)iikgm2s−1\mathrm{kg}{m}^{2}{s}^{-1}kgm2s−1
cμB{\mu }_{B}μB​ (Magnetic field energy density)iiim−1{m}^{-1}m−1
dη\etaη (coefficient of viscosity)ivkgm−1s−2\mathrm{kg}{\text{m}}^{-1}{s}^{-2}kgm−1s−2
Choose the most appropriate answer from the options given below:
Official previous-year question

Held on 27 Aug 2021 · Verified 6 Jul 2026.

Options

  1. A

    (a)−(iv),(b)−(ii),(c)−(i),(d)−(iii)(a)-(\mathrm{iv}),(b)-(\mathrm{ii}),(c)-(i),(d)-(\mathrm{iii})(a)−(iv),(b)−(ii),(c)−(i),(d)−(iii)

  2. B

    (a)−(ii),(b)−(iii),(c)−(iv),(d)−(i)(a)-(\mathrm{ii}),(b)-(\mathrm{iii}),(c)-(\mathrm{iv}),(d)-(i)(a)−(ii),(b)−(iii),(c)−(iv),(d)−(i)

  3. C

    (a)−(iii),(b)−(ii),(c)−(iv),(d)−(i)(a)-(\mathrm{iii}),(b)-(\mathrm{ii}),(c)-(\mathrm{iv}),(d)-(i)(a)−(iii),(b)−(ii),(c)−(iv),(d)−(i)

  4. D

    (a)−(iii),(b)−(ii),(c)−(i),(d)−(iv)(a)-(\mathrm{iii}),(b)-(\mathrm{ii}),(c)-(i),(d)-(\mathrm{iv})(a)−(iii),(b)−(ii),(c)−(i),(d)−(iv)

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