Physics · 2013
JEE Main · 9 April 2013, Shift 1 · Q23
A ray of light of intensity I is incident on a parallel glass slab at point A as shown in diagram. It undergoes partial reflection and refraction. At…
A ray of light of intensity I is incident on a parallel glass slab at point A as shown in diagram. It undergoes partial reflection and refraction. At each reflection, $\displaystyle 25$% of incident energy is reflected. The rays AB and $\displaystyle \mathrm{A}^{\prime} \mathrm{B}^{\prime}$ undergo interference. The ratio of $\displaystyle \mathrm{I}_{\text {max }}$ and $\displaystyle \mathrm{I}_{\text {min }}$ is :
Official answer
(1)
$\displaystyle 49: 1$
More from Wave Optics
- ' n ' polarizing sheets are arranged such that each makes an angle 45^° with the preceeding sheet. An unpolarized light of intensity I is incident…2023
- In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength λ=500 nm is incident on the slits. The total number of…2019
- 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…2025
- In interference experiment the path difference between two interfering waves at a point A on the screen is λ / 3, where λ is the wavelength of these…2026
- In the Young's double slit experiment, the distance between the slits varies in time as d(t)=d_0+a_0 sin ω t; where d_0, ω and a_0 are constants. The…2021
- A monochromatic light wave with wavelength λ_1 and frequency ν_1 in air enters another medium. If the angle of incidence and angle of refraction at…2023
- As shown in the figure, in Young's double slit experiment, a thin plate of thickness t=10 μ m and refractive index μ=1.2 is inserted infront of slit…2023
- Unpolarised light of intensity 32 Wm^-2 passes through the combination of three polaroids such that the pass axis of the last polaroid is…2023
JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.