In the microwave experiment, the distance moved by the detector between two successive minima is 1.6 cm. The microwave frequency is (c = 3 10^8 m/s):

  1. 4.7 10^9 Hz
  2. 9.4 10^9 Hz
  3. 1.9 10^10 Hz
  4. 1.6 10^10 Hz
Answer

B) 9.4 10^9 Hz

lambda = 3.2 cm; f = c/lambda = 9.4 10^9 Hz. SLO P-11-D-10 · Application

Physics MCQ · More Superposition, Stationary Waves and Beats MCQs · Practise