JEE Main 2024 (Online) 27th January Evening Shift | Wave Optics Question 22 | Physics

A single slit of width $a$ is illuminated by a monochromatic light of wavelength $600 \mathrm{~nm}$. The value of ' $a$ ' for which first minimum appears at $\theta=30^{\circ}$ on the screen will be :

${3} \mu \mathrm{m}$

$0.6 \mu \mathrm{m}$

$1.8 \mu \mathrm{m}$

$1.2 \mu \mathrm{m}$

JEE Main 2023 (Online) 13th April Evening Shift

MCQ (Single Correct Answer)

-1

In a Young's double slits experiment, the ratio of amplitude of light coming from slits is $$2: 1$$. The ratio of the maximum to minimum intensity in the interference pattern is:

25 : 9

9 : 1

9 : 4

2 : 1

JEE Main 2023 (Online) 10th April Evening Shift

MCQ (Single Correct Answer)

-1

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

2 : 3

1 : 3

3 : 1

3 : 2

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