ASSESSMENT

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

• Green

• Orange

• Red

• Violet

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

• highest frequency

• lowest frequency

• longest wavelength

• shortest wavelength

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

• box

• cellphone

• paper

• prism

4. Nina sent an arrow beam of white light through a prism. As a result, she observed the light dispersing into ___.

• four colors

• three colors

• five colors

• seven colors

5.Rainbows are formed through   .

I.dispersion

II.reflection

III. refraction

• I only

• I and II

• III only

• I, II and III

6.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.

7.For visible light, which property changes with color?

I. Frequency

II. Period

III. Wavelength

• III only

• I and II

• I and III

• I, II, and III

8. Which of the following colors has the highest energy?

• orange

• red

• violet

• yellow

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

• frequency

• reflection

• refraction

• wavelength

10.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