Your answer choice is ( A)
Sorry if I’m wrong
The speed of light is determined by the medium (material) through which the light is travelling. Light travels faster in a vacuum than it does in any other medium. Light changes speed as it passes from one medium to another. This is called refraction.
The rate of flow of electric CHARGE past any point is described in the unit of electric CURRENT ... the Ampere.
Answer with Explanation:
We are given that a transverse travelling wave on a cord is represented by

Where D and x in meters
t(in seconds)
a.General equation of transverse wave

By comparing we get
A=0.51


Wavelength,
b.
Frequency,
c.Velocity,
Direction:Towards negative x- axis
d.Amplitude,A=0.51 m
e.Maximum speed,
Minimum speed,