Answer : The speed of waves along the wire is, 1.2 m/s
Explanation :
Formula used :
where,
= frequency = 
= wavelength = 
c = speed of wave = ?
Now put all the given value in the above formula, we get the speed of waves along the wire.
Thus, the speed of waves along the wire is, 1.2 m/s
Answer:
C
Explanation:
Sound waves speed up noticeably when moving through a solid or liquid, because all it is is just particles colliding; and particles are way closer together with those states of matter.
The speed of light can change when moving through different substances, but this is dependent on complicated factors such as frequency, polarization, intensity, et. cetera
The important part is that it does change speed, so your answer is C.
Hope this helps!
Answer a kind of radiation including visible light, radio waves,gamma rays,and x-rays,in which electric and magnetic fields vary simultaneously
Explanation:
