Question

Light waves:
A. Require air or another gas to travel through \\\
B. Require an electric field to travel through \\\
C. Require a magnetic field to travel through \\\
D. Can travel through perfect vacuum​\\\

Answer 1

In nature, an electromagnetic wave has the ability of travelling in a medium as well in vacuum. It does not need any specific medium to travel and the particle of the wave travels in a straight line.

Complete step-by-step solution:
Light: In physics, when the light comes under the electromagnetic waves. Various types of electromagnetic waves differentiated in different names on the basis of the variation of their wavelength.

We know the wavelength of the visible light varies from $400\;{\rm{nm}}$ to $700\;{\rm{nm}}$. The light is a transverse wave and travels in the path of the straight line. The main source of visible light for our Earth is the Sun. We get light from the Sun, as we know that in outer space, there is a vacuum all around and light travels through that medium when it travels from the Sun to the Earth.

The particles of the light wave vibrate in a direction perpendicular to the direction of the moving wave. This perpendicular displacement of the particle represents the transverse nature of the light. On the other hand, particles displaced parallel to the direction of the motion of the light wave.
Thus, we can say that the light can travel through the vacuum and it does not need any specific medium to travel.

Therefore, the correct answer is option (D).

Note:
Light shows wave-particle duality in nature, as it is a part of electromagnetic waves and shows wave nature like electromagnetic waves, and also the light is a group of energy particles that are responsible for its particle behavior.