1

JEE Main 2021 (Online) 1st September Evening Shift

Numerical

+4

-1

The width of one of the two slits in a Young's double slit experiment is three times the other slit. If the amplitude of the light coming from a slit is proportional to the slit-width, the ratio of minimum to maximum intensity in the interference pattern is x : 4 where x is ____________.

Your input ____

2

JEE Main 2021 (Online) 31st August Evening Shift

Numerical

+4

-1

In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away from the plane of slits. Distance between fourth bright fringes on both sides of central bright is 2.4 cm. The frequency of light used is ______________ $$\times$$ 10

^{14}Hz.Your input ____

3

JEE Main 2021 (Online) 26th August Evening Shift

Numerical

+4

-1

A source of light is placed in front of a screen. Intensity of light on the screen is I. Two Polaroids P

_{1}and P_{2}are so placed in between the source of light and screen that the intensity of light on screen is I/2. P_{2}should be rotated by an angle of (degrees) so that the intensity of light on the screen becomes $${{3I} \over 8}$$.Your input ____

4

JEE Main 2021 (Online) 26th August Morning Shift

Numerical

+4

-1

White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation between the slits is 0.3 mm. The first violet and red fringes are formed 2.0 mm and 3.5 mm away from the central white fringes. the difference in wavelengths of red and violet light is ................ nm.

Your input ____

Questions Asked from Wave Optics (Numerical)

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