Question

The path difference between two interfering
wave at a point on screen is 171.5 times the
wavelength. If the path difference is 0.01372
cm. Find the wavelength ?

1) 4000 Å
2) 6000 Å
3) 7000 Å
4) 8000 Å
​

Answer 1

Answer:

Explanation:

Path difference =171.5λ=3432λ= odd multiple of half wavelength. It means dark finge is observed

Accoding to question 0.01029=3432λ⇒λ=0.01029×2343=6×10−5cm⇒λ=6000Å

Answer 2

Answer:

Explanation:

I want