MCQ
The angular frequency of emf wave will be (in $\frac{\text{rad}}{\text{s}}$)
  • $8_p \times 107$
  • B
    $4_p \times 106$
  • C
    $2 p \times 105$
  • D
    $\pi \times 104$

Answer

Correct option: A.
$8_p \times 107$
a. $8_p \times 107$
Explanation:
Frequency of wave $f =40 \times 106 Hz$
Angular frequency, $\omega=2\pi\text{v}$
$\omega=2\pi\times40\times10^6$
$\Rightarrow\omega=8\pi\times10^7\frac{\text{rad}}{\text{s}}$

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