Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2016PhysicsWave OpticsActual

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9: 1 . The intensities of the used light sources are in ratio

Options

  1. A3: 1
  2. B4: 1
  3. C9: 1
  4. D10: 1

Correct answer

B. 4: 1

Step-by-step solution

aligned & I_ I_ = (a+b)^2 (a-b)^2 & 9 1 = (a+b)^2 (a-b)^2 & or 3 1 = a+b a-b or 3 a-3 b=a+b & or 2 a=4 b or a=2 b & I₁ I₂ = a^2 b^2 = 4 1 aligned

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