the top of needle doesn't give a sharp image. it is due to
Correct answer: C. diffraction
- A. polarization
- B. interference
- C. diffraction
- D. none
Explanation
When light waves encounter sharp edges or small openings, they bend slightly around them. This phenomenon is called diffraction. In the case of a needle, the sharp tip acts as an edge for the light waves, causing them to diffract. This bending of the light waves disrupts the formation of a clear and sharp image on the screen
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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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