1. Tardigrade
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  3. Physics
  4. Assertion: To observe diffraction of light the size of obstacle/aperture should be of the order of 10-7m. Reason: 10-7m is the order of wavelength of visible light.

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Q. Assertion : To observe diffraction of light the size of obstacle/aperture should be of the order of $10^{-7}m$.
Reason : $10^{-7}m$ is the order of wavelength of visible light.

AIIMSAIIMS 2012

Solution:

For diffraction to occur, the size of an obstacle/aperture is comparable to the Wavelength of light wave.