chap 11 quiz

What determines the color of the scattered light in the Tyndall effect?

• A. The speed of light

• B. The size of the scattering particles

• C. The angle of incidence

• D. The refractive index of the medium

What is the angle between the two lateral faces of a triangular glass prism called?

• A. Angle of incidence

• B. Angle of refraction

• C. Angle of deviation

• D. Angle of the prism

Which colour bends the least when passing through a prism?

• A. Red

• B. Violet

• C. Blue

• D. Green

Why does the sky appear blue during the day?

• A. Blue light is absorbed by the atmosphere.

• B. Blue light is scattered more strongly than red light.

• C. Blue light is reflected by clouds.

• D. Blue light is emitted by the Sun.

What happens to light when it enters a triangular glass prism?

• A. It continues in a straight line.

• B. It bends towards the normal.

• C. It bends away from the normal.

• D. It splits into multiple colours.

What did Isaac Newton discover when he used a glass prism to obtain the spectrum of sunlight?

• A. Sunlight contains only three colours.

• B. Sunlight is made up of seven colours.

• C. Sunlight is a continuous spectrum.

• D. Sunlight has no colours.

What effect does atmospheric refraction have on the apparent position of a star when viewed near the horizon?

• A. The star appears lower than its actual position.

• B. The star appears higher than its actual position.

• C. The star appears exactly at its actual position.

• D. The star disappears from view.

What is the sequence of colours seen when white light is split into its component colours by a prism?

• A. Red, Orange, Yellow, Green, Blue, Indigo, Violet

• B. Violet, Indigo, Blue, Green, Yellow, Orange, Red

• C. Blue, Green, Yellow, Orange, Red, Violet, Indigo

• D. Yellow, Green, Blue, Indigo, Violet, Red, Orange

Which of the following particles contribute to the Tyndall effect in the Earth's atmosphere?

• A. Molecules of air

• B. Suspended dust particles

• C. True solution particles

• D. Colloidal particles

What causes a rainbow to appear in the sky after a rain shower?

• A. Reflection of sunlight from water droplets

• B. Refraction of sunlight by tiny prisms

• C. Dispersion of sunlight by water droplets

• D. Absorption of sunlight by raindrops