The phenomenon of interference in light waves is a direct consequence of:
The superposition principle of waves.
The superposition principle of waves. is correct.
Interference is the redistribution of light intensity when two or more coherent waves overlap. By the superposition principle, the resultant displacement at any point is the algebraic sum of the displacements of the individual waves.
Where crests meet crests (path difference \(n\lambda\)) the waves add and give bright fringes (constructive interference); where crests meet troughs (path difference \((2n+1)\dfrac{\lambda}{2}\)) they cancel and give dark fringes, as in Young's double-slit experiment.
The particle (photon) picture does not explain fringes; diffraction is a separate effect of bending around obstacles, itself explained by superposition; polarization shows that light is a transverse wave, not why waves interfere.
Similar Questions
Due to which scientific phenomenon does a stick, when partly immersed in water, appears to be bent?
Convex mirror is used as:
The defect in image formation for the wandering of the focus on the principal axis of a lens is called ________.
The phenomenon of total internal reflection can occur when light travels from:
When a ray of light is passed through a prism, it splits into his constituent colours. This phenomenon is called:
Important Questions from Optics
Who was the first one to use a glass prism to obtain the spectrum of sunlight?
Twinkling of stars is due to:
In which a convex mirror is used?
A. Rear View mirrors in vehicles
B. Glass windows
C. Makeup Mirror
D. Kaleidoscope
An object is placed 10 cm in front of a lens. The image formed is real, inverted and of same size as the object. What is the focal length and nature of the lens?
The power of a lens is -2.5 D. The type of lens and its focal length are respectively:
