When two waves of almost equal frequency n_1 and n_2 are produced… - Vidyadip

MCQ

When two waves of almost equal frequency $n_1$ and $n_2$ are produced simultaneously, then the time interval between successive maxima is:

✓
$\frac{1}{\text{n}_1-\text{n}_2}$
B
$\frac{1}{\text{n}_1}-\frac{1}{\text{n}_2}$
C
$\frac{1}{\text{n}_1}+\frac{1}{\text{n}_2}$
D
$\frac{1}{\text{n}_1+\text{n}_2}$

✓

Answer

Correct option: A.

$\frac{1}{\text{n}_1-\text{n}_2}$

Time interval between two successive maxima $=$ time interval between two successive beats
$=\frac{1}{\text{n}}=\frac{1}{\text{n}_1-\text{n}_2}$

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