NEETPhysicsWave OpticsMCQ+4 / −1
In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is
- A6
- B8
- C9
- D12
More from Wave Optics
- Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a diameter of 2 m is :2020 · MCQ
- In Young's double slit experiment, if the separation between coherent sources is halved and the distance of the screen from the coherent sources is doubled, then the fringe width becomes :2020 · MCQ
- In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1m away, was found to be 0.2o. What will be the angular width of the first minima, (water = 4/3)…2019 · MCQ
- In Young’s double slit experiment the separation d between the slits is 2 mm, the wavelength of the light used is 5896 and distance D between the screen and slits is 100 cm. It is found that the angular…2018 · MCQ
- Unpolarised light is incident from air on a plane surface of a material of refractive index . At a particular angle of incidence i, it is found that the reflected and refracted rays are perpendicular to each other. Which of the…2018 · MCQ
- Young's double slit experiment is first performed in air and then in a medium other than air. It is found that 8th bright fringe in the medium lies where 5th dark fringe lies in air. The refractive index of the medium is nearly2017 · MCQ
- The ratio of resolving powers of an optical microscope for two wavelength 1 = 4000 and = 6000 is2017 · MCQ
- Two polaroids P1 and P2 are placed with their axis perpendicular to each other. Unpolarised light 0 is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its axis makes an angle 45o with that of P1. The intensity…2017 · MCQ