Which of the following correctly describes the pathway of light in the image

What is the name of this type of lens?

What is the name given to the process where white light spreads into its seven different colours after travelling through a prism?

Which region of the electromagnetic spectrum has the longest wavelength?

All EM Radiation can travel in a vacuum.

Toasters, grill and heaters use which region of the EM Spectrum?

All sounds can travel in a vacuum.

Which medium do sounds travel fastest in?

Which of the following are parts of the human ear?

A bat emits a sonar pulse when locating its prey. It receives the echo after 0.024 s. If sound travels at 330 m/s in air. How far away is it’s prey?

Sounds are produced by ...

Which of the following methods are used to focus light through binoculars?

Which of the following is non-luminous?

All light travels in straight lines.