1
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
2
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
3
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
4
JEE Main 2020 (Online) 6th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90o. A, B and C are three distinct points of observation, each equidistant from the midpoint of PQ. The intensities of radiation at A, B, C will be in the ratio :

JEE Main 2020 (Online) 6th September Morning Slot Physics - Wave Optics Question 67 English
A
4 : 1 : 0
B
2 : 1 : 0
C
0 : 1 : 2
D
0 : 1 : 4
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12