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Wave Optics — BITSAT Physics PYQs

27 previous year questions from Wave Optics with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

Wave Optics — BITSAT Physics PYQs

Young's double slit experiment is performed in a medium of refractive index of 1.33 . The maximum intensity is I₀ . The intensity at a point on the screen, where path difference be

In YDSE, monochromatic light falls on a screen 1.80 m from two slits separated by 2.08 mm . The first and second order bright fringes are separated by 0.553 mm . The wavelength of

A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm . The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from

The property of light which cannot be explained by Huygen's construction of wavefront is

When a light ray incidents on the surface of a medium, the reflected ray is completely polarized. Then the angle between reflected and refracted rays is

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

The ratio of intensities at two points P and Q on the screen in a Young's double slit experiment where phase difference between two wave of same amplitude are 3 and 2 , respectivel

In a Young's double slit experiment, the intensities at two points, for the path difference 4 and 3 ( being the wavelength of light used) are I₁ and I₂ respectively. If I₀ denotes

In a young's double slit arrangement frings are produced using light of wavelength 4000 Å . One slit is covered by a thin plate of glass of refractive index 1.4 and the other with

Consider the optical system shown in Fig. The point source of light S is having wavelength equal to . The light is reaching screen only after reflection. For point P to besecond ma

A thin sheet of glass ( =1.5) of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiment shifts the central fringe to a position previ

In Young&#39;s double-slit experiment, the distance between slits and screen is 2 m and distance between slits is 0 . 25 mm . A light of wavelength 800 nm is used to find fringes o

Two monochromatic light waves are travelling with same frequency and constant phase difference. If both waves interfere, then

In Young&#39;s double slit experiment, intensity at a point is 1 4 of the maximum intensity. Angular position of this point is

In Young&#39;s double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths &#955; 1 = 12000 &#8491; and &#955; 2 = 10000 &#8491; . At what mi

The ratio of intensity at the centre of a bright fringe to the intensity at a point distance one-fourth of the distance between two successive bright fringes will be

In the Young's double-slit experiment, the intensity of light at a point on the screen where the path difference is is K ,( being the wave length of light used). The intensity at a

Calculate the wavelength of light used in an interference experiment from the following data: Fringe width =0.03 ~cm . Distance between the slits and eyepiece through which the int

In a YDSE, the light of wavelength =5000 Ã is used, which emerges in phase from two slits a distance d =3 10⁻⁷ ~m apart. Atransparent sheet of thickness t =1.5 10⁻⁷ ~m refractive i

The angular size of the central maxima due to a single slit diffraction is a slit width )

Find the final intensity of light (I"), if the angle between the axes of two polaroids is 60^ .

In Young's double slit experiment 10 th order maximum is obtained at the point of observation in the interference pattern for =7000 . If the source is replaced by another one of wa

A mica slit of thickness t and refractive index is introduoed in theray from the first source S₁ . By how much distance of fringes pattern will be displaced?

In a Young's double slit experiment the angular width of a fringe formed on a distant screen is 1^ . The wavelength fo the light used is 6280 . What is the distance between the two

If the distance between the first maxima and fifth minima of a double slit pattern is 7 ~mm and the slits are separated by 0.15 ~mm with the screen 50 cm . from the slits, then the

When a mica sheet of thickness 7 microns and =1.6 is placed in the path of one of interfering beams in the biprism experiment then the central fringe gets at the position of sevent

In Young's double slit experiment, if the slit widths are in the ratio 1: 2, the ratio of the intensities at minima and maxima will be

In Young's double-slit experiment, the distance between slits and screen is 2 m and distance between slits is 0 . 25 mm . A light of wavelength 800 nm is used to find fringes o

In Young's double slit experiment, intensity at a point is 1 4 of the maximum intensity. Angular position of this point is

In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths λ 1 = 12000 Å and λ 2 = 10000 Å . At what mi