Question

A micro-wave and an ultrasonic sound wave have the same wavelength. Their frequencies are in the ratio (approximately):

• A. ${10}^6:1$
• B. ${10}^4:1$
• C. ${10}^2:1$
• D. $10:1$
• E. $1:1$

Answer 1

Answer: (A)

Correct answer is (a) ${10}^6:1$