A sound wave is produced fron a source ans an echo is hea...
A sound wave is produced fron a source ans an echo is heard t seconds afterwards. If d is the distance of the reflecting surface from the source, v the speed, p the wavelength and T the period of the wave, then
d = \(\frac{2t}{\lambda}\)
d = \(\frac{\lambda t}{2T}\)
d = \(\frac{2T}{\lambda t}\)
d = \(\frac{\lambda T}{2t}\)
Correct answer is B
V = \(\frac{2d}{t}\)
f\(\lambda = \frac{2d}{t} = \frac{\lambda}{T} = \frac{2d}{t}\)
Which of the following has the lowest internal resistance when new? ...
In the study of Physics, temperature and heat are often confused with each other. Which of the ...
The nucleon number of an atom is the total number of ...
The phenomenon of photoelectric effect is used in the following EXCEPT ...
Lenz's law of electromagnet states that ...
What happens when a, certain quantity of pure ice is completely changed to water at 0oC? ...
Steam burn is more severe than that of boiling water because ...