A standing wave pattern is formed when a plane electromagnetic wave from a transmitter falls on a perfect reflector at normal incidence. A receiver kept at a distance d from the reflector and along the line of normal incidence detects a minimum for a signal of frequency, ν = 100 MHz. When the frequency is decreased to ν = 99.9 MHz, the receiver records a maximum. Assuming c = 3 × 10^8 ms−1, the distance d is
(A) 75 m (B) 1500 m (C) 3000 m (D) 750 m
A standing wave pattern is formed when a plane electromagnetic wave from a transmitter falls on a perfect reflector at normal incidence. A receiver kept at a distance d from the reflector and along the line of normal incidence detects a minimum for a signal of frequency, ν = 100 MHz. When the frequency is decreased to ν = 99.9 MHz, the receiver records a maximum. Assuming c = 3 × 10^8 ms−1, the distance d is
(A) 75 m (B) 1500 m (C) 3000 m (D) 750 m
(A) 75 m (B) 1500 m (C) 3000 m (D) 750 m
Sujan Chakraborty , 6 Years ago
Grade 12th pass
