COLORS OF LIGHT

Which has the least energy among the colors of a rainbow?

• green

• orange

• red

• violet

Violet is bent most among the seven colors because it has the ___________.

• highest frequency

• lowest frequency

• longest wavelength

• shortest wavelength

Which of the following can separate white light into seven colors?

• box

• cellphone

• paper

• prism

Nina sent an arrow beam of white light through a prism. As a result,

she observed the light dispersing into ___ colors.

• 4

• 3

• 5

• 7

Rainbows are formed through ______.

• dispersion

• dispersion & reflection

• refraction

• dispersion, reflection & refraction

What can prisms do?

• Change sunlight into a single color.

• Invert a light ray’s frequency and wavelength.

• Separate the incoming light into its constituent colors.

• Slow down light to few meters per second, when used back to back.

For visible light, which property changes with color?

• wavelength

• frequency & period

• frequency & wavelength

• frequency, wavelength & period

Which of the following colors has the highest energy?

• orange

• red

• violet

• yellow

What refers to the bending of light as it passes from one medium into another?

• frequency

• reflection

• refraction

• wavelength

Which of the following arrangements of visible light colors shows decreasing wavelength?

• red, orange, yellow, green, blue, indigo, violet

• red, yellow, green, orange, violet, blue, indigo

• violet, blue, green, orange, red, indigo, yellow

• violet, indigo, blue, green, orange, yellow, red