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oee [108]
4 years ago
6

Part A

Physics
1 answer:
spin [16.1K]4 years ago
6 0

Explanation:

Part A,

Wavelength of microwave radiation, \lambda=3\ cm=0.03\ m

We know that the microwaves is a type of electromagnetic wave. It is moving with speed of light. Let f is the frequency of the microwave radiation.

f=\dfrac{c}{\lambda}

f=\dfrac{3\times 10^8\ m/s}{0.03\ m}

f=10^{10}\ Hz

f=10\ GHz

The frequency of microwave radiation is 10 GHz.

Part B,

Microwave signals are beamed between two mountaintops 55 km apart, d = 55000 m

Let t is the time taken by the signal to travel from one mountaintop to the other. It is given by :

t=\dfrac{d}{c}

t=\dfrac{55000\ m}{3\times 10^8\ m/s}

t=0.000183\ s

t=0.18\ ms

Hence, this is the required solution.

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