Class 8 Light, Reflection, and Human Eye Quiz

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7 Questions

Which part of the eye is responsible for controlling the amount of light entering the eye?

Iris

When light passes from air into water, what happens to its speed?

Decreases

What is the angle of reflection when a light ray reflects from a smooth surface?

90 degrees

What happens to the size of the image formed by the eye lens when we focus on a closer object?

The size of the image increases

What happens to the focal length of the eye lens when we focus on a nearby object?

Decreases

What is the angle of reflection when a light ray reflects from a rough surface?

It cannot be determined without specific information about the surface

When light passes from air into glass, what happens to its speed?

Its speed decreases

Test your knowledge of light, reflection, and the human eye with this quiz. Questions cover topics such as laws of reflection, the working of the human eye, and the behavior of light when passing through different mediums.

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