Ray Optics Test...

In young\'s double slit experiment, phase difference between light waves reaching 3rd bright fringe from central fringe with, is___________.( λ = 5000 Å )

Which of the following will undergo maximum diffraction ?

A Slit of width 12 × 10^–7 m is illuminated by light of wavelength 6000 Å . The angular width of the central maximum is approximately__________.

The distance between the first and sixth minima in the diffraction pattern of a single slit, it is 0.5 mm. The screen is 0.5 m away from the Slit. If the wavelength of light is 5000 Å , then the width of the slit will be_______________mm

____________change in the polarisation pronominal of light ?

In young\'s double slit experiment the phase difference is constant between two sources is π/2. The intensity at a point equidistant from the slits in terms of max. intensity I₀ is_____________.

In figure young\'s double slit experiment Q is the position of the first bright fringes on the right side of O, p is the 11th fringe on the other side as measured from Q If λ = 6000 Å then S₁ B will be___________m

The two coherent sources of intensity β produce interference. The fringe visibility will be________

Light of wave–length λ is incident on a slit of width d. The resulting diffraction pattern is observed on a screen placed at a distance D. The linear width of the principal maximum is equal to the width of the slit, then D = __________________.

A polarise is used for____________.