I WILL GIVE U A BRAINLIEST

the table below shows the wavelengths for some electromagnetic waves, A, B, C and D.

a teacher is going to demonstrate diffraction of waves through a gap she will carry out the demonstration in a classroom
the teacher is able to generate waves A, B, C and D

which wave would she use?
a, b, c or d

EXPLAIN YOUR ANSWER ​​

I WILL GIVE U A BRAINLIEST the table below shows the wavelengths for some electromagnetic waves A B C and D a teacher is going to demonstrate diffraction of wav class=