Question

The angular frequency of emf wave will be (in rad/s)

• A. $8p\times {10}^7$
• B. $4p\times {10}^6$
• C. $2p\times {10}^5$
• D. $\pi \times {10}^4$

Answer 1

The correct option is A $8p\times {10}^7$

Frequency of wave $f=40\times {10}^{6}Hz$

Angular frequency, $\omega =2\pi \nu$

$\omega =2\pi \times 40\times {10}^6$

$⟹\omega =8\pi \times {10}^{7}rad/s$