The velocity of all radio waves in free space is 3 × 108 m / s. The frequency of a radio wave of wavelength 150 m is:

Question

The velocity of all radio waves in free space is 3 × 108 m / s. The frequency of a radio wave of wavelength 150 m is: (A) 20 KHz (B) 2 KHz (C) 2 MHz (D) 1 MHz

Tardigrade Admin · Accepted Answer

Frequency of radio wave v=(c/λ)=(3 × 108/150) 2 × 106=2 MHz

Q. The velocity of all radio waves in free space is $3 \times 1 0^{8}$ $m / s$ . The frequency of a radio wave of wavelength $150 m$ is:

$20 KHz$

$2 KHz$

$2 M Hz$

$1 M Hz$

Frequency of radio wave
$v = \frac{c}{λ} = \frac{3 \times 1 0 ^{8}}{150}$
$2 \times 1 0^{6} = 2 M Hz$

Q. The velocity of all radio waves in free space is 3×108 m/s. The frequency of a radio wave of wavelength 150m is:

20KHz

2KHz

2MHz

1MHz