The condition for observing Fraunhofer diffraction from a single slit is that the light wavefront incident on the slit should be
A. Spherical
B. cylindrical
C. plane
D. elliptical
Answer:C
The condition for observing Fraunhofer diffraction from a single slit is that the light wavefront incident on the slit should be
A. Spherical B. cylindrical C. plane D. elliptical