CBSE Class 12-science Answered
Hello mam,
i wanted to know that how can light bend at corners of an obstacle or an aperture according to diffraction, if it travels in a straight line?
Asked by AKSHAYA V | 07 Feb, 2014, 03:46: PM
Expert Answer
Light travels in a straight line. But, light is a form of wave.
When light is emitted from a source, every point in the wave acts as a secondary source of light.
Thus, when the light encounters an obstacle, that point acts as a secondary source and the original light and the secondary source interfere and they form a diffraction pattern.
This pattern indicates that the light is bent at an angle.
Answered by | 10 Feb, 2014, 12:19: PM
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