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

2021 · 18 Mar · Shift 2 · Q63
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Wave Optics
  5. /2021 · 18 Mar · Shift 2 · Q63

Wave Optics question

2021 · 18 Mar · Shift 2 · Q63

JEE MainPhysicsWave OpticsNumerical+4 / −1
A galaxy is moving away from the earth at a speed of 286 kms −-− 1. The shift in the wavelength of a redline at 630 nm is x ×\times× 10 −-− 10 m. The value of x, to the nearest integer, is ‾\underline{\hspace{2cm}}​. [Take the value of speed of light c, as 3 ×\times× 108 ms −-− 1]
Numerical answer
PreviousNext

More from Wave Optics

  • With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength 5890 Ao​ is observed at 5896 Ao​ ?2021 · MCQ
  • In a Young's double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit-width. Find the ratio of the maximum to the minimum intensity in…2021 · MCQ
  • An unpolarised light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the analyzer is measured as 100 Lumens. Now, if the analyzer is rotated around the horizontal axis (direction…2021 · Numerical
  • If the source of light used in a Young's double slit experiment is changed from red to violet :2021 · MCQ
  • Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio Imax​+Imin​Imax​−Imin​​ will be :2021 · MCQ
  • Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter 0.1 μ m. If the diameter of the pinhole is slightly increased, it will affect the diffraction pattern such that:2021 · MCQ
  • In the Young's double slit experiment, the distance between the slits varies in time as d(t) = d0 + a0 sin ω t; where d0, ω and a0 are constants. The difference between the largest fringe width and the smallest fringe width…2021 · MCQ
  • White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation between the slits is 0.3 mm. The first violet and red fringes are formed 2.0 mm and 3.5 mm away from the central white fringes.…2021 · Numerical