Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2014PhysicsWave OpticsActual

In the Young’s double slit experiment the intensity of light at a point on the screen where the path difference is λ is K , ( λ being the wave length of light used). The intensity at a point where the path difference is λ 4 , will be:

Options

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

Correct answer

C. K 2

Step-by-step solution

I m a x = 4 I 0 = K at the other point, path difference = λ 4 So, phase difference ϕ = 2 π λ × λ 4 = π 2 I ' = I 0 + I 0 + 2 I 0 I 0 cos ⁡ π 2 I ' = 2 I 0 = K 2

Practice Wave Optics on Quantrex Academy →

More from Wave Optics

An unpolarized light beam of intensity I₀ passes through a series of n Polaroids P₁, P₂, P₃, P_n . The pass axis of each poloroid makes an angle of 60^ with the other poloroid. Wha 2026In a single-slit Fraunhofer diffraction experiment, the first secondary minimum is observed at an angle of 30^ for light of wavelength . If the same slit is now illuminated by ligh 2026In the Young's double slit experiment, the intensity of light at a point on the screen is 'K', being the wavelength of light used. The intensity at a point where path difference is 2026Two images are considered "just resolved" according to Rayleigh's criterion when 2026In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths ₁ = 6000 Å and ₂ = 5000 Å one after the other. At what minimum distanc 2026In Young's double slit, 18 fringes are observed to be formed in a certain segment of the screen when light of wavelength 400 nm is used. If the wavelength is changed to 600 nm, the 2026When the un-polarised light beam is incident from air to glass (n = 1.5) at the Brewster's angle, 2026In Young's double-slit experiment, the intensity at a point is ( 1 4 ) of the maximum intensity. The angular position of this point is = wavelength of light used, d = separation be 2026 Full Wave Optics list All NEET PYQs