As per photon picture of light intensity of light is determined by the number of photons of a given frequency crossing per unit area per unit time. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.
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Reflection and refraction both arise through interaction of incident light with the atomic constituents of matter. Atoms may be considered as oscillators which vibrate with the frequency of light. The frequency of light emitted by a charged oscillator equals its ...
A wavefront is defined as a surface of constant phase. Consider a plane surface XY separating a denser medium of refractive index n₁ from a rarer medium of refractive index n₂. Let c₁ and c₂ be the values of speed ...
The conservation law of energy holds good for the phenomenon of interference as well as diffraction. Due to interference or diffraction we obtain maxima and minima intensities at different points. From points of minima intensity the energy has been shifted ...
When white light replaces monochromatic light, interference patterns of different colors overlap. The central fringe is white, as all colors align there. Closest fringes to the center are red, and farthest are blue-violet, as violet fringes are narrower and red ...
On reducing the size of slit to one-half, the size of central maximum will be doubled and the intensity will become 1/4 th of its previous value. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.
For blue light the angular width of central diffraction maximum is more than that for red light. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.
For diffraction at a single-slit the angular width of the principal maximum is inversely proportion to the width of the slit i.e., angular width θα 1/a . Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.
No, reduction in speed on passing from a rarer to a denser medium does not imply a reduction in energy of light because the frequency of light remains unchanged and the energy of a light photon depends only on its ...
(i) Two sources must emit light of same wavelength (or frequency). (ii) Originating phase difference between two light sources must be either zero or having a constant value, which should not change with time. Class 12 Physics Chapter 10 Wave ...