Dispersion & Colors

Which of the following is NOT needed for a rainbow to form and be seen?

• sunlight

• water drop

• human eyes

• wind

At which angle does red light refracts during the formation of a rainbow?

• 40⁰

• 41⁰

• 42⁰

• 43⁰

TRUE or FALSE.

All rainbows are in full circle.

• TRUE

• FALSE

TRUE or FALSE.

In a double rainbow, the area of the second rainbow is brighter and vibrant.

• TRUE

• FALSE

Study the following illustration, what is the arrangement of colors of the second rainbow?

• ROYGBIV

• VIBGYOR

• ROYVIBG

• VIBGROY

Which of the following phenomenon occurs when light hits a prism and splits into separates colors?

• total internal reflection

• apparent depth

• dispersion

• diffraction

Study the following diagram.

Encircle the incident light.

In which of the following wavelengths of light will we see color green?

• 400 nm

• 450 nm

• 500 nm

• 550 nm

Study the following illustration.

Which of the following parts of the eyes contain the photoreceptor cells?

• Iris

• Lens

• Cornea

• Retina

Which of the following wavelengths of light will produce the color, red?

• 550 nm

• 600 nm

• 650 nm

• 700 nm