Q

What is the wavelength of a wave with frequency 840 Hz and speed 380 m/s?

RRB Group-D 04/12/2018 (Shift-II) 2018
✓ Answer: A 0.45 m
λ = v/f = 380/840 ≈ 0.45 m.
← Previous Question Next Question →

📚 Related Questions

1 An object falls freely from height h. When is its kinetic energy… 2 Which of the following best explains how ultrasound is used in medical… 3 A 10 kg object is 6 m above the ground. Find its… 4 As a result of adiabatic compression of an ideal gas, _____. 5 A constant force acts on a 5 kg object for 2 s,… 6 A car moving along a straight road slows down and stops. What…