Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2016PhysicsWave OpticsActual

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 point where the path difference is / 4, will be :

Options

  1. AK
  2. BK / 4
  3. CK / 2
  4. DZero

Correct answer

C. K / 2

Step-by-step solution

For path difference , phase difference =2 rad For path difference 4 , phase difference = 2 rad As K =4 I ₀ so intensity at given point where path difference is 4 K ^ =4 I ₀ ² ( 4 ) ( 4 = 45^ )=2 I ₀= K 2

Practice Wave Optics on Quantrex Academy →

More from Wave Optics

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 2024In 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 2024A 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 2024The property of light which cannot be explained by Huygen's construction of wavefront is 2024When 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 2024A 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 : 2023The 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 2023In 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 2023 Full Wave Optics list All BITSAT PYQs