One wavelength used by telstar 401 satellite is 7.807 cm. what is the frequency of this light in mhz?

Given:

Wavelength used by the satellite (λ) = 7.807 cm

To determine:

The frequency (ν) in MHz

Explanation:

Frequency is related to the wavelength by the following equation:

ν = c/λ

where c = speed of light = 3*10¹⁰ cm/s

ν = 3*10¹⁰ cm.s⁻¹/7.807 cm = 3843 *10⁶ s⁻¹

Now, the SI of frequency is Hertz (Hz) where:

1 Hz = 1 s⁻¹

Therefore, ν = 3843 * 10⁶ Hz

Since 1 Megahertz (MHz) = 10⁶ Hz,

ν = 3843 MHz

Ans: The frequency of light is 3843 MHz

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