If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be at least equal to

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If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be at least equal to

PhysicsCommunication SystemJEE Main

Options:

A 3 m
B 75 m
C 600 m
D 3000 m

Solution:

2611 Upvotes Verified Answer

The correct answer is: 75 m

λ = \frac{3 \times 10^{8}}{1 \times 10^{6}}

= 300 m

l_{m i n} = \frac{λ}{4} = 75 m

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