MHT CET 2019 3rd May Morning Shift | Wave Optics Question 142 | Physics

In Young's double slit experiment fifth dark fringe is formed opposite to one of the slit. IID is the distance between the slits and the screen and $d$ is the separation between the slits, then the wavelength of light used is

$\frac{d^2}{5 D}$

$\frac{d^2}{9 D}$

$\frac{d^2}{6 D}$

$\frac{d^2}{15 D}$

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

The phenomenon of interference is based on

conservation of momentum

quantum nature of light

conservation of energy

conservation of charge

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

Light of wavelength ' $\lambda$ ' is incident on a single slit of width ' $a$ ' and the distance between slit and screen is ' $D$ '. In diffraction pattern, if slit width is equal to the width of the central maximum then ' $D$ ' is equal to

$\frac{a}{2 \lambda}$

$\frac{a^2}{2 \lambda}$

$\frac{a}{\lambda}$

$\frac{a^2}{\lambda}$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

The luminous border that surrounds the profile of a mountain just before sun rises behind it, is an example of

dispersion

total internal reflection

interference

diffraction

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