Navigate

The velocity of radio-waves is 3×10⁵ km/s. The frequency corresponding to wavelength

The velocity of radio-waves is 3×10⁵ km/s. The frequency corresponding to wavelength of 300 m is

Options

(a) 1 MHz
(b) 10 MHz
(c) 1 kHz
(d) 10 kHz

Correct Answer:

1 MHz

Explanation:

Frequency ʋ = Velocity v / Wavelength λ = v / λ

⇒ ʋ = (3 × 10⁵ × 10³) / 300 = 10⁶ Hz = 1 MHz

AFMC2001
admin:

Related Questions

  1. A satellite is launched into a circular orbit of radius R around earth while
  2. A small part of the rim of a fly wheel breaks off while it is rotating at a constant
  3. Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
  4. For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
  5. If a small amount of antimony is added to germanium crystal