This is a two part question: Part A : The picture shows the water waves passing

Question

This is a two part question:

Part A: The picture shows the water waves passing through a small opening in a ripple tank. What phenomenon the picture represents?

A) Constructive intereference

B) Destructive interference

C) Refraction

D) Diffraction

Part B:

The photograph shows interference fringes with indicated central maxima. How far is the dot from the central maxima?

A) 1.0 wavelength

B) 1.5 wavelength

C) 2.0 wavelength

D) 2.5 wavelength

E) 3.0 wavelength

F) 3.5 wavelength

G) 4.0 wavelength

**please show all work for credit**

Explanation / Answer

Part A) diffaraction

Part B)   C) 2 wavelength

the dot lies at n = 2 , so 2 times wavelength

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