Write True if the sentence is correct. If false, explain why the statement is incorrect.
Write your answers on the blanks.
1. Light is both a particle and a wave.
2. Mechanical waves are capable of traveling through a vacuum.
3. Opaque media do not only transmit light but also reflect light
4. In EM waves, the continuous range of frequencies is known as the
electromagnetic spectrum.
5. An echo is made when a sound wave bounces off a surface and is reflected
back to you.​