Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Most Important Selected Qs for JEE AdvancedPhysicsWave Optics

At a point on the screen in YDSE experiment 3rd maxima is observed at t=0 . Now screen is slowly moved with constant speed away from the slits in such a way that the centre of slits and centre of screen lie on the same, line always and at t=1 sec the intensity at that point is observed (3/4)th of maximum intensity in between 2nd and 3rd maxima. The speed of screen may be ( D= separation between the screen and slits d

Options

  1. A7 D 13
  2. B13 D 5
  3. CD 17
  4. DNone of these

Correct answer

C. D 17

Step-by-step solution

O P= 3 D d Corresponding path difference at position mentioned is (2+1 / 6) or (3-1 / 6) aligned & 13 6 (D+v) d = 3 D d v= 5 D 13 & or 17 6 d (D+v)= 3 D d v= D 17 aligned

Practice Wave Optics on Quantrex Academy →

More from Wave Optics

In the List-I, four optical effects are mentioned. The physical phenomena of light which are essential to describe these optical effects are given in List-II. Choose the option whi 2026In a single slit diffraction experiment, a slit of width (0.016 0.002) mm is used to measure the wavelength of a monochromatic light source. In the diffraction pattern, the angular 2026As shown in the figure, a ray AB of unpolarized light enters from water of refractive index n_w = 4/3 into a medium of refractive index n_p = 4/ 3 after passing through a glass pla 2026Some distant star is to be observed by some telescope of diameter of objective lens a , at an angular resolution of 3.0 10⁻⁷ radian. If the wavelength of light from the star reachi 2026In a Young double slit experiment, the wavelength of incident light is 6000 Å, the separation between slits S₁ and S₂ is 5 cm and the distance between slits plane and screen is 50 2026In interference experiment the path difference between two interfering waves at a point A on the screen is /3 , where is the wavelength of these waves, and at another point B the p 2026An unpolarized light of intensity I_o passes through polarizer and then through a certain optically active solution and finally it goes to analyser. If the angle between analyser a 2026The maximum intensity in a Young's double slit experiment is I₀ . Distance between the slits ( d ) is 5 , where is the wavelength of light used. The intensity of the fringe, exactl 2026 Full Wave Optics list All Most Important Selected Qs for JEE Advanced PYQs