Advertisements
Advertisements
प्रश्न
The ratio of maximum and minimum intensities in an interference pattern is 36 : 1. What is the ratio of the amplitudes of the two interfering waves?
Advertisements
उत्तर
`"I"_"max"/"I"_"min" = 36/1`
`"I"_"max"/"I"_"min" = ("a"_1 + "a"_2)^2/("a"_1 - "a"_2)^2`
`("a"_1 + "a"_2)^2/("a"_1 - "a"_2)^2 = 36/1 = 6^2/1^2`
`("a"_1 + "a"_2)/("a"_1 - "a"_2) = 6/1`
a1 + a2 = 6a1 - 6a2
a2 + 6a2 = 6a1 - a1
7a2 = 5a1
`7/5 = "a"_1/"a"_2`
a1 : a2 = 7 : 5
APPEARS IN
संबंधित प्रश्न
Answer in brief:
Explain what is the optical path length. How is it different from actual path length?
The intensity of the light coming from one of the slits in Young's experiment is twice the intensity of the light coming from the other slit. What will be the approximate ratio of the intensities of the bright and dark fringes in the resulting interference pattern?
Two coherent sources whose intensity ratio is 25:1 produce interference fringes. Calculate the ratio of amplitudes of light waves coming from them.
Draw a neat labelled ray diagram of the Fresnel Biprism experiment showing the region of interference.
What is intensity (or) amplitude division?
How do source and images behave as coherent sources?
Discuss the interference in thin films and obtain the equations for constructive and destructive interference for transmitted and reflected light.
Does diffraction take place at Young’s double-slit?
In Young’s double slit experiment, the slits are 2 mm apart and are illuminated with a mixture of two wavelength λ0 = 750 nm and λ = 900 nm. What is the minimum distance from the common central bright fringe on a screen 2 m from the slits where a bright fringe from one interference pattern coincides with a bright fringe from the other?
Light of wavelength 600 nm that falls on a pair of slits producing interference pattern on a screen in which the bright fringes are separated by 7.2 mm. What must be the wavelength of another light which produces bright fringes separated by 8.1 mm with the same apparatus?
If the monochromatic source in Young's double slit experiment is white light, then ____________.
In Young's experiment for the interference of light, the separation between the silts is d and the distance of the screen from the slits is D. If D is increased by 0.6% and d is decreased by 0.2%, then for the light of a given wavelength, which one of the following is true?
"The fringe width ____________."
If two light waves reaching a point produce destructive interference, then the condition of phase difference is ______
In a biprism experiment, monochromatic light of wavelength (λ) is used. The distance between two coherent sources is kept constant. If the distance between slit and eyepiece (D) is varied as D1, D2, D3, and D4, the corresponding measured fringe widths are z1, z2, z3, and z4 then ______
In an interference experiment, the intensity at a point is `(1/4)^"th"` of the maximum intensity. The angular position of this point is at ____________.
(cos 60° = 0.5, `lambda` = wavelength of light, d = slit width)
Two coherent sources of intensities I1 and I2 produce an interference pattern on the screen. The maximum intensity in the interference pattern is ______
If we have two coherent sources S1 and S2 vibrating in phase, then for an arbitrary point P constructive interference is observed whenever the path difference is ______.
How will the interference pattern of Young's double slit change if one of the two slits is covered by a paper which transmits only half of the light intensity?
Interference fringes are produced on a screen by using two light sources of intensities I and 9I. The phase difference between the beams is `pi/2` at point P and π at point Q on the screen. The difference between the resultant intensities at point P and Q is ______.
