NEETPhysicsWave OpticsMCQ+4 / −1
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 :
- Ahalf
- Bfour times
- Cone-fourth
- Ddouble
More from Wave Optics
- 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
- In a diffraction pattern due to a single slit of width , the first minimum is observed at an angle 30o when light of wavelength 5000 is incident on the slit. The first secondary maximum is observed at an…2016 · MCQ
- The intensity at the maximum in a Young's double slit experiment is 0. Distance between two slits is d = 5, where is the wavelength of light used in the expreriment. What will be the intensity in front of one of the…2016 · MCQ