Wave Optics Tes...

If I₀ is the intensity of the principle maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled

In a Young\'s double slit experiment, the separation between the two slits is d and the wavelength of the light is λ The intensity of light falling on slit 1 is four times the intensity of light falling on slit 2. Choose the correct choice (s)

In an interference arrangement similar to Young\'s double slit experiment, the slits S₁ and S₂ are illuminated with coherent microwave sources each of frequency 10⁶ Hz. The sources are synchronized to have zero phase difference. The slits are separated by distance d= 150 m. The intensity I(θ) is measured as a function of θ, where θ is defined as shown. If I₀ is maximum intensity, then I (θ) for 0 ≤ θ ≤ 90° is given by

In Young\'s double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance d (d >> b) from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are

In the Young\'s double slit experiment, the ratio of intensities of bright and dark fringes is 9. This means that

In Young\'s double slit experiment with a source of light of wavelength 6320 Å, the first maxima will occur when

A thin air film is formed by putting the convex surface of a plane-convex lens over a plane glass plate. With monochromatic light, this film given an interference pattern due to light reflected from the top (convex) surface and the bottom (glass plate) surface of the film.
Statement 1 When light reflects from the air-glass plate interface, the reflected wave suffers a phase change of it
Statement 2 The centre of the interference pattern is dark.

An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ₀ + µ₂I, where µ₀ and µ₂ are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
The initial shape of the wavefront of the beam is

An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ₀ + µ₂I, where µ₀ and µ₂ are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
The speed of light in the medium is

An initially parallel cylindrical beam travels in a medium of refractive index µ(I) = µ₀ + µ₂I, where µ₀ and µ₂ are positive constant and I is the intensity of the light beam. The intensity of the beam is decreasing with increasing radius.
As the beam enters the medium, it will