Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 56
What is the speed of a sound wave whose frequency is 2000 Hz and whose wavelength is 0.2 m?
Solution
$$ frequency = \frac{speed of the sound wave}{wavelength} $$
given
frequency = 2000 Hz
wavelength = 0.2 m
substituting
$$ 2000 =\frac{c}{0.2} $$
solving
speed of a sound wave = 400 m/s
Create a FREE account and get:
- Download RRB Study Material PDF
- 45+ RRB previous papers with solutions PDF
- 300+ Online RRB Tests for Free
