Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Wave Optics question

2025 · 2 Apr · Shift 1 · Q57
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Wave Optics
  5. /2025 · 2 Apr · Shift 1 · Q57

Wave Optics question

2025 · 2 Apr · Shift 1 · Q57

JEE MainPhysicsWave OpticsMCQ+4 / −1
A light wave is propagating with plane wave fronts of the type x+y+z=x+y+z=x+y+z= constant. Th angle made by the direction of wave propagation with the xxx-axis is :
  1. A
    cos⁡−1(2/3)\cos ^{-1}(2 / 3)cos−1(2/3)
  2. B
    cos⁡−1(13)\cos ^{-1}\left(\frac{1}{\sqrt{3}}\right)cos−1(3​1​)
  3. C
    cos⁡−1(13)\cos ^{-1}\left(\frac{1}{3}\right)cos−1(31​)
  4. D
    cos⁡−1(23)\cos ^{-1}\left(\sqrt{\frac{2}{3}}\right)cos−1(32​​)
Next

More from Wave Optics

  • If the measured angular separation between the second minimum to the left of the central maximum and the third minimum to the right of the central maximum is 30∘ in a single slit diffraction pattern recorded using 628 nm light,…2025 · Numerical
  • Two coherent monochromatic light beams of intensities 4I and 9I are superimposed. The difference between the maximum and minimum intensities in the resulting interference pattern is xI. The value of x is ​…2025 · Numerical
  • Two monochromatic light beams have intensities in the ratio 1:9. An interference pattern is obtained by these beams. The ratio of the intensities of maximum to minimum is2025 · MCQ
  • Width of one of the two slits in a Young's double slit interference experiment is half of the other slit. The ratio of the maximum to the minimum intensity in the interference pattern is :2025 · MCQ
  • A monochromatic light of frequency 5×1014 Hz travelling through air, is incident on a medium of refractive index ' 2 '. Wavelength of the refracted light will be :2025 · MCQ
  • In a Young's double slit experiment, the slits are separated by 0.2 mm . If the slits separation is increased to 0.4 mm , the percentage change of the fringe width is :2025 · MCQ
  • Two polarisers P1​ and P2​ are placed in such a way that the intensity of the transmitted light will be zero. A third polariser P3​ is inserted in between P1​ and P2​, at particular angle between P2​ and P3​. The transmitted…2025 · MCQ
  • In a Young's double slit experiment, two slits are located 1.5 mm apart. The distance of screen from slits is 2 m and the wavelength of the source is 400 nm . If the 20 maxima of the double slit pattern are contained within the central…2025 · Numerical