Question
Physics Question on Reflection Of Light By Spherical Mirrors
Yellow light is used in a single slit diffraction experiment with slit width of 0.6 mm. If yellow light is replaced by X-rays, then the observed pattern will reveal
A
that the central maximum is narrower
B
more number of fringes
C
less number of fringes
D
no diffraction pattern
Answer
no diffraction pattern
Explanation
Solution
Diffraction is obtained when the slit width is of the order of
wavelength of light (or any electromagnetic wave) used.
Here, wavelength of X-rays (1-100 A) << slit width
(0.6 mm). Therefore, no diffraction pattern will be observed.