What is interference of light?
a) The bending of light around obstacles
b) The splitting of light into colors
c) The superposition of light waves leading to constructive or destructive effects
d) The absorption of light by materials
Which of the following phenomena is the result of interference of light?
a) Rainbow formation
b) Diffraction patterns
c) Colors in soap bubbles
d) All of the above
What is constructive interference?
a) When two waves meet in phase, amplifying the light
b) When two waves meet out of phase, canceling each other
c) When two waves are of different frequencies
d) When the waves are completely independent
What is destructive interference?
a) When two waves meet in phase, amplifying the light
b) When two waves meet out of phase, canceling each other
c) When two waves have the same amplitude
d) When the waves merge without any change
Which type of light source is typically used in interference experiments?
a) Monochromatic light
b) Polychromatic light
c) Ultraviolet light
d) Infrared light
In a double-slit interference experiment, the condition for constructive interference is:
a) d sin(θ) = mλ
b) d sin(θ) = (m + 1/2)λ
c) d sin(θ) = λ
d) d sin(θ) = 0
In Young’s double-slit experiment, what does the pattern of bright and dark fringes depend on?
a) The frequency of light
b) The wavelength of light
c) The intensity of light
d) The size of the slits
The dark fringes in a double-slit interference pattern occur when the path difference is equal to:
a) λ/2
b) λ
c) (m + 1/2) λ
d) mλ
What is the interference pattern formed by two coherent light sources?
a) A single bright spot
b) A set of concentric circles
c) A series of alternating dark and light fringes
d) A continuous spectrum
Which of the following is necessary for producing interference patterns?
a) The light sources must be incoherent
b) The light sources must be coherent
c) The light sources must be monochromatic
d) Both b and c
In an interference pattern, what happens to the fringe width as the wavelength increases?
a) It increases
b) It decreases
c) It remains the same
d) It disappears
What is the role of coherence in interference of light?
a) Coherent light sources have random phases
b) Coherent light sources have a constant phase relationship
c) Incoherent light sources produce a stronger pattern
d) Coherence has no effect on the interference pattern
In which of the following experiments does interference of light occur?
a) Young’s double-slit experiment
b) Michelson interferometer
c) Fizeau experiment
d) All of the above
What is the fringe width in Young’s double-slit experiment?
a) The distance between two adjacent dark fringes
b) The distance between two adjacent bright fringes
c) The total width of the pattern
d) The distance from the slit to the screen
In the Young’s double-slit experiment, if the distance between the slits is doubled, what happens to the fringe width?
a) It increases
b) It decreases
c) It remains the same
d) It disappears
What is the result when two light waves interfere destructively?
a) The intensity of light increases
b) The intensity of light decreases
c) The intensity of light remains constant
d) The intensity fluctuates
Which of the following factors influences the fringe separation in Young’s double-slit experiment?
a) Distance between the slits
b) Wavelength of light
c) Distance between the screen and slits
d) All of the above
Which experiment showed the phenomenon of interference of light?
a) Rutherford’s gold foil experiment
b) Young’s double-slit experiment
c) Einstein’s photoelectric experiment
d) Hertz’s spark-gap experiment
In the case of light interference, what does it mean for two light waves to be coherent?
a) The waves have the same amplitude
b) The waves have the same wavelength and a fixed phase relationship
c) The waves are produced by the same source
d) The waves are polarized in the same direction
What happens to the interference fringes in Young’s double-slit experiment when the distance between the slits is decreased?
a) The fringes become wider
b) The fringes become narrower
c) The fringes disappear
d) The fringes remain unchanged
Which of the following phenomena is an example of interference of light in daily life?
a) The rainbow
b) Colors in soap bubbles
c) Refraction in a prism
d) Reflection from a mirror
In the interference of light, what happens to the intensity at the central maximum?
a) It is zero
b) It is the maximum intensity
c) It is half of the maximum intensity
d) It is constant across the pattern
Which of the following conditions is necessary for observing interference?
a) Light must be incoherent
b) Light must be monochromatic and coherent
c) Light must have varying wavelengths
d) Light must be scattered
What causes the colors in a thin film, such as a soap bubble?
a) Refraction of light
b) Diffraction of light
c) Interference of light
d) Reflection of light
The interference of light can be explained by which wave property?
a) Refraction
b) Diffraction
c) Polarization
d) Superposition principle
In an interference experiment with two slits, how do the light waves interact at the location of the first minimum?
a) They are in phase
b) They are out of phase by π/2
c) They are completely out of phase (destructive interference)
d) They are partially in phase
