Question
Physics Question on Waves
A single slit of width a is illuminated by a monochromatic light of wavelength 600 nm. The value of 'a' for which first minimum appears at θ=30° on the screen will be :
A
0.6μm
B
1.2μm
C
1.8μm
D
3μm
Answer
1.2μm
Explanation
Solution
The correct option is(B): 1.2μm