JAMB - Physics (1979 - No. 10)
If the wavelength of a wave travelling with a velocity of 360ms-1 is 60m, the period of the wave is
6s
3.6s
0.17s
0.61s
3s
คำอธิบาย
V = \(\alpha\)F and F = \(\frac{1}{T}\)
v = \(\frac{\pi}{T}\)
T = \(\frac{60}{360}\)
T = 0.17s
v = \(\frac{\pi}{T}\)
T = \(\frac{60}{360}\)
T = 0.17s