Optics Question 211
Question: Conditions of diffraction is
[RPET 2001]
Options:
A) $ \frac{a}{\lambda }=1 $
B) $ \frac{a}{\lambda }»1 $
C) $ \frac{a}{\lambda }«1 $
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
For diffraction size of the obstacle must be of the order of wavelength of wave $ i.e. $
$ a\approx \lambda $