Chapter 27 – Wave Optics

In the standard young’s double -slit experiment with coherent light of wavelength 600 nm, the fringe width of the fringes in the central region In the standard young's double -slit experiment with coherent light of wavelength 600 nm the fringe width of the fringes in the central region November 15, 2020 Category: Cengage JEE Mains [...]

In Young’s double-slit experiment, 30 fringes are obtained in the field of view of the observing telescope, when the wavelength of light used is 4000 A ˚ . If we use monochromatic light of wavelength 6000 A ˚ , the number of fringes obtained in the same field of view is: 30 fringes are obtained [...]

What happens to the interference pattern if the two slits in Young’s experiment are illuminated by two independent sources such as two sodium lamps S and S′ as shown in figure. What happens to the interference pattern if the two slits in Young's experiment are illuminated by two independent sources such as two sodium lamps [...]

Young’s double-slit experiment is made in a liquid. The tenth bright fringe in liquid lies in screen where 6th dark fringe lies in vacuum. The refractive index of the liquid is approximately Young's double-slit experiment is made in a liquid. The tenth bright fringe in liquid lies in screen where 6th dark fringe lies in [...]

In Young’s double slit experiment, how many maximas can be obtained on a screen (including the central maximum) on both sides of the central fringe if (λ=2000Å)? how many maximas can be obtained on a screen (including the central maximum) on both sides of the central fringe if (λ=2000Å)? In Young's double slit experiment November [...]

A plate of thickness t made of material of refractive index μ is placed in front of one of the slits in a double-slit experiment. What should be the minimum thickness t which will make the intensity at the centre of the fringe pattern zero? Sources 1 and 2 emit lights of different wavelengths whereas [...]

A monochromatic beam of light fall on YDSE apparatus at some angle (say θ) as shown in figure. A thin sheet of glass is inserted in front of the lower slit s2. The central bright fringe (path difference =0) will be obtained Sources 1 and 2 emit lights of different wavelengths whereas sources 3 and [...]

In Young’s double-slit experiment, the y-coordinate of central maxima and 10th maxima are 2 cm and 5 cm, respectively, When the YDSE apparatus is immersed in a liquid of refreactive index 1.5, the corresponding y-coordinates will be In Young's double slit experiment respectively the corresponding y-coordinates will be the y-coordinate of central maxima and 10th [...]

Light waves travel in vacuum along the y-axis. Which of the following may represent the wavefront? Light waves travel in vacuum along the y-axis. Which of the following may represent the wavefront? November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 27 - Wave Optics ,

A wave front AB passing through a system C emerges as DE. The system C could be A wave front AB passing through a system C emerges as DE. The system C could be November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 27 - Wave Optics ,