1
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is $$6.0 \times 10^{-7} \mathrm{~T}$$. The maximum value of electric field in the electromagnetic wave is

A
$$6.0 \times 10^{-7} ~\mathrm{Vm}^{-1}$$
B
$$5 \times 10^{14} ~\mathrm{Vm}^{-1}$$
C
$$180 ~\mathrm{Vm}^{-1}$$
D
$$2 \times 10^{15} ~\mathrm{Vm}^{-1}$$
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The time period of a satellite, revolving above earth's surface at a height equal to $$\mathrm{R}$$ will be

(Given $$g=\pi^{2} \mathrm{~m} / \mathrm{s}^{2}, \mathrm{R}=$$ radius of earth)

A
$$\sqrt{32 R}$$
B
$$\sqrt{4 \mathrm{R}}$$
C
$$\sqrt{8 R}$$
D
$$\sqrt{2 R}$$
3
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement I : For diamagnetic substance, $$-1 \leq \chi < 0$$, where $$\chi$$ is the magnetic susceptibility.

Statement II : Diamagnetic substances when placed in an external magnetic field, tend to move from stronger to weaker part of the field.

In the light of the above statements, choose the correct answer from the options given below

A
Both Statement I and Statement II are true
B
Statement I is correct but Statement II is false
C
Both Statement I and Statement II are False
D
Statement I is incorrect but Statement II is true.
4
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The ratio of intensities at two points $$\mathrm{P}$$ and $$\mathrm{Q}$$ on the screen in a Young's double slit experiment where phase difference between two waves of same amplitude are $$\pi / 3$$ and $$\pi / 2$$, respectively are

A
2 : 3
B
1 : 3
C
3 : 1
D
3 : 2
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