Embibe Experts Solutions for Chapter: Wave Optics, Exercise 1: Exercise 1

The polaroid is -

Which is incorrect with reference to polarisation by reflection-

The two coherent sources of intensity that ratio $2:8$ produce an interference pattern. The values of maximum and minimum intensities will be respectively(intensity of first light is $I_1$)

In young's double slit experiment, the distance between two slits is made three times then the fringe width will become-

When sunlight is scattered by atmospheric atoms and molecules the amount of scattering of light of wavelength $880 \mathrm{nm}$ is $\mathrm{A}$. Then, the amount of scattering" of light of wavelength $330 \mathrm{nm}$ is approximately

Light of wavelength $6328 \mathrm{\AA }$ is incident normally on slit having a width of $0.2 \mathrm{mm}$. The width of the central maximum measured from minimum to minimum of diffraction pattern on a screen $9.0$ meters away will be about-

In the ideal double-slit experiment, when a glass-plate (refractive index $1.5$) of thickness $t$ is introduced in the path of one of the interfering beams (wavelength  $\lambda$ ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass plate is

Two beams of light having intensities $I$ and $4I$ interfere to produce a fringe pattern on a screen. The phase difference between the beams is $\frac{\pi }{2}$ at point $\mathrm{A}$ and $\pi$ at point $\mathrm{B}$. Then the difference between resultant intensities at $\mathrm{A}$ and $\mathrm{B}$ is