Question

A light wave can travel​

Answer 1

Light travels as a wave. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum—a completely airless space. ... It speeds through the vacuum of space at 186,400 miles (300,000 km) per second.

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Answer 2

Answer:

Hope it helps.

Explanation:

Light does not need any material to carry along. It can travel through a vacuum(a completely airless space). It can travel as a wave but not sound wave or water wave. It's speed is denoted by c, is a universal physical constant. It's exact value is defined as 299 792 458 per second.