When light is incident on a diffraction grating, the light that will be deviated from central image will be _:
Correct answer: D. Red
- A. Yellow
- B. Violet
- C. Indigo
- D. Red
Explanation
When light is incident on a diffraction grating, the amount of deviation is directly proportional to the wavelength of light. Red light, having the longest wavelength among the options, will experience the maximum deviation. This is because longer wavelengths diffract more than shorter ones. Therefore, options Yellow, Violet, and Indigo are incorrect as they have shorter wavelengths and thus deviate less than red light.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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