In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum |
|
a) |
Increases in both Fresnel and Fraunhoffer diffraction |
b) |
Decreases both in Fresnal and Fraunhoffer diffraction |
c) |
Increases in Fresnel diffraction but decreases in Fraunhoffer diffraction |
d) |
Decreases in Fresnel diffraction but increases in Fraunhoffer diffraction |
In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum |
|
a) |
Increases in both Fresnel and Fraunhoffer diffraction |
b) |
Decreases both in Fresnal and Fraunhoffer diffraction |
c) |
Increases in Fresnel diffraction but decreases in Fraunhoffer diffraction |
d) |
Decreases in Fresnel diffraction but increases in Fraunhoffer diffraction |
The phenomenon of diffraction of light was discovered by |
|||||||
a) |
Huyghen |
b) |
Newton |
c) |
Fresnel |
d) |
Grimaldi |
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