Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202127 Jul 2021Evening ShiftPhysicsWave OpticsActual

The difference in the number of waves when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is _____ mm . [Refractive index of air = 1 . 0003 , the wavelength of yellow light in vacuum = 6000 A ∘ ]

Correct answer

0

Step-by-step solution

Thickness t = n λ So, n   λ vac   = ( n + 1 ) λ air   n λ = ( n + 1 ) λ μ air n = 1 μ air - 1 = 10 4 3 t = n λ = 10 4 3 × 6000   A 0 = 2   mm

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 JEE Main PYQs