1
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
2
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List - I with List - II

JEE Main 2021 (Online) 26th August Evening Shift Physics - Units & Measurements Question 74 English

Choose the most appropriate answer from the options given below :
A
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
B
(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
C
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
D
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
3
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If the length of the pendulum in pendulum clock increases by 0.1%, then the error in time per day is :
A
86.4 s
B
4.32 s
C
43.2 s
D
8.64 s
4
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In a Screw Gauge, fifth division of the circular scale coincides with the reference line when the ratchet is closed. There are 50 divisions on the circular scale, and the main scale moves by 0.5 mm on a complete rotation. For a particular observation the reading on the main scale is 5 mm and the 20th division of the circular scale coincides with reference line. Calculate the true reading.
A
5.00 mm
B
5.25 mm
C
5.15 mm
D
5.20 mm
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