Question

ob
communication a
systeam
Electromagnetic wave and
1kHz= 100 Hz,
IMHZ - 100 Hz,
11 GHz - 10 9 HZ.
Tum - 10-om
JA - 10-10m = 108 cm
Inm= 109m.
e
the
frequne
Speed of
red light
N = ?
light. is 3X108 mis calculate the f
GF wavelength 0.5 X10 m .
C = 3x108MIS.
- 6.5 X10-7m.
3x108 = nx6.5X10!
n = XI08
0.5X10-1
n = 3 X 10'5.​

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