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Different optical phenomena are explained by different theories of light. Option A is wrong. Quantum theory (Planck's quantum hypothesis) deals with energy quantization and is used primarily for blackbody radiation atomic spectra and related phenomena. It does not directly explain reflection refraction and straight-line propagation. Option B is wrong. Photon theory (Einstein's particle theory) explains the photoelectric effect and Compton effect. It deals with particle-like behaviour and does not explain wave phenomena like reflection refraction diffraction and interference in the classical sense. Option C is CORRECT. The image states: प्रकाश का परावर्तन, अपवर्तन, सीधी रेखा में गमन, व्यतिकरण व ध्रुवण इत्यादि प्रकाश की किस प्रकृति की व्याख्या पर आधारित है — प्रकाश के विद्युत चुम्बकीय तरंग सिद्धांत पर. Maxwell's electromagnetic wave theory (1865) describes light as transverse electromagnetic waves. This theory explains reflection refraction straight-line propagation interference polarization and diffraction. Option D is wrong. Special theory of relativity (Einstein 1905) deals with motion at speeds close to light speed and concepts like time dilation length contraction. It does not explain basic optical phenomena like reflection and refraction.
FAQ
Common questions and clear answers for this topic.
Optics is the branch of physics that studies the behavior of light, including its reflection, refraction, and interaction with lenses and mirrors.
Reflection is the bouncing back of light when it strikes a surface, while refraction is the bending of light as it passes from one medium to another with a different optical density.
A lens is a transparent optical device with curved surfaces that refracts light to converge or diverge rays, commonly classified as convex (converging) or concave (diverging).
The speed of light in a vacuum is approximately 3 x 10^8 meters per second, denoted by the symbol c.
Total internal reflection occurs when light traveling from a denser medium to a rarer medium strikes the boundary at an angle greater than the critical angle, causing it to be completely reflected back into the denser medium.
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