Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
KVPY2020PhysicsWave Optics

A right-angle isosceles prism is held on the surface of a liquid composed of miscible solvents A and B of refractive index n A = 1 . 50 and n B = 130 , respectively. The refractive index of prism is n p = 1 . 5 and that of the liquid is given by n L = C A n A + 1 - C A n B , where C A is the percentage of solvent A in the liquid:- If θ C is the critical angle at prism-liquid interface, the plot which best repres

Correct answer

0

Step-by-step solution

n p sin θ C = n L sin 90 ° θ C = sin - 1 n L n P θ C = sin - 1 C A n A + 1 - C A n B 1 . 5 → Graph between θ C and C A will be curve of sin - 1 , Check for C A = 0 . 5 , to find most appropriate graph θ C = sin - 1 0 . 5 ( 1 . 5 ) + 0 . 5 ( 1 . 3 ) 1 . 5 θ C = sin - 1 14 15 ≃ 69 ° ∴ Correct option is (A)

Practice Wave Optics on Quantrex Academy →

More from Wave Optics

If the intensity of the central maximum in the Young's double slit experiment is I₀ , what will be the intensity at the same region when one of the slits is blocked by an opaque ob 2026The width of the fringes obtained with a light of wave length 6.2 10⁻⁸ m is 1.82 mm. If the whole apparatus is immersed in a liquid of refractive index 1.3, what will be the width 2026In a single slit diffraction experiment, the diffraction pattern is observed on a screen placed at a distance of 2m from the slit of 1mm width. If the distance between the first da 2026A diffraction pattern due to a single slit of width 0.12mm is obtained with a blue green light of wavelength 500 nm. The angular separation between central maximum and second order 2026In a Young's double slit experiment, the slit separation is 1.5 mm. The setup is illuminated simultaneously by light of wavelengths 6000 Å and 8000 Å. The screen is placed at a dis 2026In a Young's double slit experiment, the slits are separated by 0.5 mm. Fringes are obtained on a screen which is placed at distance 1 m away from the slits. When the screen is mov 2026In Young's double slit experiment, how many maxima can be seen on a screen (including central maxima) if d = 5 2 (where is wavelength of light and d is distance between the two sli 2026In an experiment, two polariods are arranged such that the intensity of the polarised light emerged from the second polaroid is 37.5 % of the intensity of the unpolarised light inc 2025 Full Wave Optics list All KVPY PYQs