Question

the diffraction observed by diffracting grating can also be termed as 1)single slit diffraction 2)double slit diffraction 3)fresnel diffraction 4)multiple slit diffraction

Answer 1

$3)fresnel \: diffraction$

Answer 2

option (1) single slit diffraction

Explanation:

single slit diffraction:

• When light is incident on a slit, with a size comparable to the wavelength of light, an alternating dark and bright pattern can be observed. This phenomenon is called the single slit diffraction.

• According to Huygens' principle, when light is incident on the slit, secondary wavelets generate from each point.  

• the diffraction observed by diffraction grating can also be termed as Single slit diffraction

hence, option (1) single slit diffraction is the correct answer