1
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A clock has a continuously moving second's hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms–2) is of the order of :
A
10-3
B
10-1
C
10-2
D
10-4
2
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An electron is moving along +x direction with a velocity of 6 $$ \times $$ 106 ms–1. It enters a region of uniform electric field of 300 V/cm pointing along +y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be :
A
3 $$ \times $$ 10–4 T, along –z direction
B
5 $$ \times $$ 10–3 T, along –z direction
C
5 $$ \times $$ 10–3 T, along +z direction
D
3 $$ \times $$ 10–4 T, along +z direction
3
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 110 English
A
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 110 English Option 1
B
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 110 English Option 2
C
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 110 English Option 3
D
JEE Main 2020 (Online) 6th September Morning Slot Physics - Semiconductor Question 110 English Option 4
4
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the bottom. If the coefficient of friction between the ground and the insect is 0.75, then h is :
(g = 10 ms–2)
A
0.45 m
B
0.60 m
C
0.20 m
D
0.80 m
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