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 ...
Category: Class 12 Physics
NCERT Solutions for Class 12 Physics updated for CBSE academic session 2021-2022.
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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 ...
The fringe width is doubled because fringe width ‘ẞ’ is directly proportional to the distance of separation ‘D’ between the slits and screen. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.
(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 ...
Yes, law of conservation of energy is strictly followed in interference phenomenon. Of course there is redistribution of energy but there is no net loss or gain of energy in accordance with the conservation law of energy. Class 12 Physics ...
We know that lightwave emitted from an ordinary light source undergoes abrupt phase changes in time intervals of the order of 10-10 s. Thus, the light waves coming out from two independent light sources will not have any fixed phase ...
Light sources which emit light waves of same wavelength (or frequency) having either zero or a constant originating phase difference are called coherent sources of light. Class 12 Physics Chapter 10 Wave Optics Session 2024-2025.