Question 485: Waves

Question

The equation of a wave is represented by
y $$=$$ 10
$$-$$4
sin(100t $$-$$ $${x \over {10}}$$) m. then the velocity of wave will be

Accepted Answer

Comparing the given equation with general equation,
$$y = a\sin 2\pi \left( {{t \over T} - {x \over \lambda }} ight)$$, we get
$$T = {{2\pi } \over {100}}$$ and $$\lambda  = 20\pi $$
$$ 	herefore v = \upsilon \lambda  = {{100} \over {2\pi }} 	imes 20\pi  = 1000\,m/s$$

Answer

100 m/s

Answer

4 m/s

Answer

1000 m/s

Answer

10 m/s

Waves

The equation of a wave is represented by y $= 10 -4 sin(100t - {x \over {10}}$) m. then the velocity of wave will be

Choose the correct answer: