Optics Question 153
Question: Four light waves are represented by (i) y = a1 sinw t (ii) $ y=a _{2}\sin (\omega t+\varphi ) $ (iii) $ y=a _{1}\sin 2\omega t $ (iv) $ y=a _{2}\sin 2(\omega t+\varphi ) $ Interference fringes may be observed due to superposition of
Options:
A) (i) and (ii)
B) (i) and (iii)
C) (ii) and (iv)
D) (iii) and (iv)
Show Answer
Answer:
Correct Answer: D
Solution:
These waves are of same frequencies and they are coherent
