Visible light

The video explains that human eyes can perceive a range of wavelengths as colors like red, orange, yellow, green, blue, indigo, and violet. This range is a small part of the electromagnetic spectrum, which extends beyond visible light in both directions.

Which of the following colors is not part of the visible spectrum that the human eye can see?

• Red

• Orange

• Green

• Ultraviolet

Which of the following is a color that the human eye can perceive?

• Infrared

• X-ray

• Indigo

• Gamma ray

What does the visible spectrum represent in terms of the electromagnetic spectrum?

• The invisible part of the electromagnetic spectrum

• A small part of the electromagnetic spectrum

• The entire electromagnetic spectrum

• The largest part of the electromagnetic spectrum

What is the relationship between visible light and electromagnetic radiation?

• Visible light is the only form of electromagnetic radiation

• Visible light is a small part of electromagnetic radiation

• Visible light is unrelated to electromagnetic radiation

• Visible light is the largest part of electromagnetic radiation

In which directions does the electromagnetic spectrum extend beyond the visible range?

• Only towards longer wavelengths

• Only towards shorter wavelengths

• In both directions

• It does not extend beyond the visible range