Three waves , and of frequencies , and , respectively, are to be transmitted from one…

PHYSICS · Single correct · CBSE · Physics · Electromagnetic Waves · Electromagnetic Waves

Problem

Three waves

A

B

and

C

of frequencies

1600\text{ kHz}

5\text{ MHz}

and

60\text{ MHz}

, respectively, are to be transmitted from one place to another. Which of the following is the most appropriate mode of communication? (1)

A

is transmitted via space wave while

B

and

C

are transmitted via sky wave. (2)

A

is transmitted via ground wave,

B

via sky wave and

C

via space wave. (3)

B

and

C

are transmitted via ground wave while

A

is transmitted via sky wave. (4)

B

is transmitted via ground wave while

A

and

C

are transmitted via space wave.