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 π/2 at a point A and π at point B. […]
In Young’s double silt experiment, 12 fringes are observed to be formed in a certain segment of the screen when light of wavelength 600 nm is used. If the wavelength of light is changed to […]
In Young’s experiment, the ratio of maximum to minimum intensities of the fringe system is 4:1. The amplitudes of the coherent sources are in the ratio
Options
(a) (4:1) (b) (3:1) (c) (2:1) (d) […]
Wave nature of light is verified by
Options
(a) Interference (b) Photoelectric effect (c) Reflection (d) Refraction
Correct Answer:
Interference
Explanation:
No explanation available. Be the first to write the explanation for this […]
As a light wave travels from one medium to another which of its following properties will change?
Options
(a) Speed and wavelength (b) Frequency and wavelength (c) Speed only (d) Frequency, wavelength and speed
In a franhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of 30. The direction of the first secondary maximum is given […]
A parallel beam of fast moving electrons is incident normally on a narrow slit. A flourescent screen is placed at a large distance from the slit. If the speed of the electrons is increased, then […]
When we close one slit in the young’s double slit experiment, then
Options
(a) the bandwidth increased (b) the bandwidth is decreased (c) the interference pattern is shifted (d) the diffraction pattern is observed
λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe widths. The wavelength λ₁ can produce photoelectric effect when incident on a metal. But the wavelength λ₂ cannot produce […]
Light of wavelength λ from a point source falls on a small circular obstacle of diameter d. Dark and bright circular rings around a central bright spot are formed on a screen beyond the obstacle. […]
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