1
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
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) $${\mu _B}$$ (Magnetic field energy density) (iii) $$\,{m^{ - 1}}$$
(d) $$\eta $$ (coefficient of viscocity) (iv) $$kg\,{m^{ - 1}}{s^{ - 2}}$$


Choose the most appropriate answer from the options given below :
A
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
B
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
C
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
D
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
2
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If force (F), length (L) and time (T) are taken as the fundamental quantities. Then what will be the dimension of density :
A
[FL$$-$$4T2]
B
[FL$$-$$3T2]
C
[FL$$-$$5T2]
D
[FL$$-$$3T3]
3
JEE Main 2021 (Online) 27th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is not a dimensionless quantity?
A
Relative magnetic permeability ($$\mu$$r)
B
Power factor
C
Permeability of free space ($$\mu$$0)
D
Quality factor
4
JEE Main 2021 (Online) 27th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If E and H represents the intensity of electric field and magnetising field respectively, then the unit of E/H will be :
A
ohm
B
mho
C
joule
D
newton
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