Respuesta :

tanmayakumarp3

Answer:

b. They travel in straight line from their source

Is correct option

Explanation:

Here, we see that,

In option a:

  • The statement is not correct
  • This is because, light waves does not always come from across the space such as sun and other stars, a small light bulb when given electricity then releases light and heat wave.

In option b:

  • The statement is correct
  • This is because, if we see a light source such as light bulbs, tubelights, sunlight, etc. every light source always gives out their light energy in a straight path not in a different manner.

In option c:

  • The statement is not correct
  • This is because, light waves do not pass through every type of materials. Materials such as book, brick, wall, etc. which are opaque do not allow light to pass through it.

In option d:

  • The statement is not correct
  • This is because, every material do reflect light, it doesn't matter whether they have a smooth surface or a rough surface. As every materials reflect light for which we are able to see that material.

Hence,

By this we can conclude that only option b is correct.