Consider an interference experiment using eight equally spaced slits. Determine the smallest phase different in the waves from adjacent slits such that the resultant wave has zero amplitude.

Explanation

To solve the problem of determining the smallest phase difference in the waves from adjacent slits such that the resultant wave has zero amplitude, we can follow these steps:

### Step 1: Understand the Concept of Phase Difference
In an interference experiment, the phase difference between waves from adjacent slits plays a crucial role in determining the resultant amplitude. When waves interfere, they can add constructively or destructively depending on their phase relationship.

### Step 2: Identify the Number of Slits
In this case, we have 8 equally spaced slits. This means that the waves emanating from these slits will have specific phase differences based on their positions.

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