Interference of Light
Physics ⇒ Light and Optics
Interference of Light starts at 11 and continues till grade 12.
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Describe the effect of increasing the wavelength of light on the separation of interference fringes in Young’s experiment.
Describe what is meant by 'coherent sources' in the context of interference.
Explain the difference between constructive and destructive interference.
Explain why monochromatic light is preferred for observing clear interference patterns.
Explain why two independent light bulbs do not produce an observable interference pattern.
If the phase difference between two interfering waves is π/2, what type of interference occurs?
In a double-slit experiment, if the intensity at the center of the screen is I₀, what will be the intensity at a point where the path difference is λ/2?
In a double-slit experiment, the distance between the central bright fringe and the first dark fringe is 0.5 mm. If the wavelength of light is 500 nm and the distance between the slits is 1 mm, what is the distance from the slits to the screen?
In a double-slit experiment, if the distance between the slits is increased, the fringe width will:
(1) Increase
(2) Decrease
(3) Remain the same
(4) First increase then decrease
The ratio of the maximum to minimum intensity in an interference pattern produced by two sources of amplitudes a and 2a is:
(1) 2:1
(2) 4:1
(3) 9:1
(4) 1:1
The visibility of interference fringes depends on:
(1) The amplitude of the waves
(2) The wavelength of the light
(3) The coherence of the sources
(4) All of the above
Which experiment first demonstrated the wave nature of light through interference?
(1) Michelson-Morley experiment
(2) Young’s double-slit experiment
(3) Newton’s rings experiment
(4) Photoelectric effect
In Newton’s rings experiment, the diameter of the nth dark ring is proportional to the _______ of n.
The central bright fringe in Young’s double-slit experiment is called the _______ fringe.
The condition for destructive interference is that the path difference between the two waves should be equal to _______.
The intensity at a point due to two waves of amplitudes a₁ and a₂ is given by _______.
True or False: Interference can occur with sound waves as well as light waves.
True or False: Interference fringes are formed due to the superposition of two or more light waves.
True or False: The energy is lost at the points of destructive interference.
True or False: The intensity at a point of constructive interference is always four times the intensity of a single wave.
