In the diffraction of light around an obstacle, the angle of diffraction is increased then:
Correct answer: A. The wavelength of incident light waves is increased
- A. The wavelength of incident light waves is increased
- B. The wavelength of incident light waves is decreased
- C. The amplitude of the incident light wave is increased
- D. The amplitude of the incident light wave is decreased
Explanation
In the diffraction of light around an obstacle, the angle of diffraction is directly related to the wavelength of the incident light wave. When the angle of diffraction increases, it means that the light waves are bending more as they pass around the obstacle. This bending is a characteristic of diffraction and is more pronounced when the wavelength of the incident light wave is larger. Therefore, the wavelength of the incident light wave is increased, as a larger wavelength leads to a greater angle of diffraction.
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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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