The Figure Shows Two Point Sources of Light,A and B,that $\lambda$

question 6

Multiple Choice

The figure shows two point sources of light,A and B,that emit light waves in phase with each other.A is distant 3 $\lambda$ from point P.B is distant 5 $\lambda$ from P.( $\lambda$ is the wavelength. ) The phase difference between the waves arriving at P from A and B is

• A)0 rad.
• B) \(\pi\) rad.
• C)2 \(\pi\) rad.
• D)3 \(\pi\) rad.
• E)4 \(\pi\)rad.

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Definitions:

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