Converging Lens and Dispersion Quiz

What is the principal focus of a converging lens?

• The point where light rays diverge
• The point where light rays converge
• The center of the lens
• The distance from the lens to the object

What happens to light rays when they pass through a converging lens?

• They spread out
• They bend away from the lens
• They converge at a point
• They remain unchanged

When is an image formed by a converging lens considered real?

• When the object is closer than the focal length
• When the object is at the focal length
• When the object is further than the focal length
• When the image is upright

Which of the following describes a virtual image formed by a converging lens?

• It is always inverted
• It cannot be projected onto a screen
• It is always smaller than the object
• It is formed when the object is at infinity

What determines whether an image is enlarged, same size, or diminished when using a converging lens?

• The color of the light
• The distance of the object from the lens
• The thickness of the lens
• The temperature of the lens

What occurs when white light passes through a glass prism?

• It reflects
• It disperses into colors
• It changes temperature
• It becomes monochromatic

Which color of light has the longest wavelength?

• Violet
• Blue
• Red
• Green

Why do different colors of light refract by different amounts in a prism?

• They have different frequencies
• They have different temperatures
• They have different intensities
• They have different colors

What is the order of colors in the visible spectrum from longest to shortest wavelength?

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

What is a monochromatic light?

• Light of multiple frequencies
• Light of a single frequency
• Light that is white
• Light that is invisible