For a radio signal to travel 150 km from the transmitter to a receiving antenna, it takes

Question

For a radio signal to travel 150 km from the transmitter to a receiving antenna, it takes (A) 5 × 10-4 s (B) 4.5 × 10-3 s (C) 5 × 10-8 s (D) 4.5 × 10-6 s

Tardigrade Admin · Accepted Answer

Velocity of radio wave is 3 × 108 m / s Timer =( text Distance / text time)=(150 × 1000/3 × 108-2) =5 × 10-4 s

Q. For a radio signal to travel $150 km$ from the transmitter to a receiving antenna, it takes

$5 \times 1 0^{- 4} s$

$4.5 \times 1 0^{- 3} s$

$5 \times 1 0^{- 8} s$

$4.5 \times 1 0^{- 6} s$

Velocity of radio wave is $3 \times 1 0^{8} m / s$
Timer $= \frac{Distance}{time} = \frac{150 \times 1000}{3 \times 1 0 ^{8} - 2}$
$= 5 \times 1 0^{- 4} s$

Q. For a radio signal to travel 150km from the transmitter to a receiving antenna, it takes

5×10−4s

4.5×10−3s

5×10−8s

4.5×10−6s