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MediumQ. No. who-first-proved-that-white-light-is-a-combination-of-all-seven-colors
Who first proved that white light is a combination of all seven colors?
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AMaxwell
BEinstein
CNewton
DHuygens
Correct Answer: Newton
The discovery that white light is a mixture of all colors is a landmark in optics. Option A is wrong. Maxwell (1831-1879) developed the electromagnetic wave theory of light and worked on color photography but he did not discover that white light is a combination of all colors. Maxwell's color triangle related to color perception not dispersion. Option B is wrong. Einstein worked on quantum theory photoelectric effect and relativity. He did not perform the prism dispersion experiment to show white light composition. Option C is CORRECT. The image states: किस वैज्ञानिक ने सर्वप्रथम बताया कि श्वेत प्रकाश सभी रंगों के प्रकाश से मिलकर बना है — न्यूटन ने. Isaac Newton in 1666 performed his famous prism experiment at Cambridge University. He passed a beam of white sunlight through a glass prism and observed that it split into the seven colors VIBGYOR (Violet Indigo Blue Green Yellow Orange Red) called the spectrum. He then used a second prism to recombine the spectrum back into white light proving that white light is a combination of all colors. This phenomenon is called dispersion. Option D is wrong. Huygens (1629-1695) developed the wave theory of light and Huygens' principle for wavefront propagation but did not perform the definitive prism dispersion experiment to prove white light composition.
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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