X-rays travel in vacuum at a higher speed than the visible light. (a) true (b) false

(B) False

Explanation:

The visible light and the x-rays are part of the electromagnetic spectrum, all in the spectrum travel in the vacuum at the same speed, at the speed of light (c = 299,792,458 m/s ). If the visible light ant the x-rays are traveling inside a medium, their velocity will change due to the properties of the medium but in the vacuum, their speed is the same.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

1 the 4 is sig