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.
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(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.
Modern telescopes prefer using concave mirror of large aperture as the objective instead of convex lens due to the following reasons: (1) There is no chromatic aberration in a mirror. (2) If the mirror is a parabolic mirror then even ...
Working of an optical fibre is based on the principle of total internal reflection of light. When a signal in the form of light is directed at one end of the fibre at a suitable angle, it undergoes repeated total ...