Exploring Lenses

What is the function of a lens?

• The function of a lens is to reflect light and distort images.

• The function of a lens is to refract light

• The function of a lens is to absorb light

• The function of a lens is to emit light and create shadows.

Explain the difference between convex and concave lenses.

• Concave lenses converge light rays

• Convex lenses converge light rays, while concave lenses diverge light rays.

• Convex lenses have a concave shape

• Convex lenses diverge light rays

How does a converging lens bend light rays?

• A converging lens bends light rays by absorbing them.

• A converging lens bends light rays by refracting them towards a common focal point.

• A converging lens bends light rays by diffracting them.

• A converging lens bends light rays by reflecting them away from a common focal point.

What is the focal length of a lens?

• The focal length of a lens is the weight of the lens.

• The focal length of a lens is the color of the lens.

• The focal length of a lens is the width of the lens.

• The focal length of a lens is the distance between the lens and the image sensor when the subject is in focus.

Describe how a diverging lens affects light rays.

• A diverging lens causes light rays to spread out or diverge.

• A diverging lens causes light rays to converge.

• A diverging lens absorbs light rays.

• A diverging lens has no effect on light rays.

What is the equation for the lens maker's formula?

• 1/f = (n + 1) * (1/R1 - 1/R2)

• 1/f = (n - 1) * (1/R1 + 1/R2)

• f = (n - 1) * (1/R1 - 1/R2)

• 1/f = (n - 1) * (1/R1 - 1/R2)

Explain how lenses are used in cameras.

• Lenses in cameras are used to cook food

• Lenses in cameras are used to play music

• Lenses in cameras are used to store images

• Lenses in cameras are used to focus light onto the camera sensor, creating a sharp image. They can adjust the focal length to zoom in or out, control the amount of light entering the camera, and create various artistic effects.

What is the difference between a real and virtual image formed by a lens?

• Real images can be captured on a screen, while virtual images cannot be captured.

• Real images are formed by the reflection of light rays, while virtual images are formed by the refraction of light rays.

• Real images are formed by the actual convergence of light rays, while virtual images are formed by the apparent convergence of light rays.

• Real images are always smaller than virtual images formed by a lens.

How does the shape of a lens affect its optical properties?

• The shape of a lens affects its optical properties by altering its weight

• The shape of a lens affects its optical properties by determining how light rays are refracted.

• The shape of a lens affects its optical properties by changing its color

• The shape of a lens has no impact on its optical properties

Discuss the concept of lens aberrations.

• Lens aberrations are caused by the weather conditions affecting the lens

• Lens aberrations are related to the color temperature of the light source

• Lens aberrations are only present in digital cameras

• Lens aberrations are imperfections in the way a lens focuses light, causing distortions or blurriness in the image.