The Straight Path of Light and Its Reflections

The video tutorial explains the properties of light, including how it travels in a straight line and the concepts of rays and beams. It demonstrates an experiment to show light's straight-line travel using cardboards and a candle. The tutorial also covers reflection, distinguishing between regular and irregular reflection, and describes the characteristics of images formed by plane mirrors, including lateral inversion and image size.

What is the term for a straight line along which light travels?

• Beam of light

• Stream of light

• Ray of light

• Wave of light

What do you call a collection of rays of light?

• Wave of light

• Stream of light

• Beam of light

• Ray of light

In the experiment with cardboards and a candle, what does it demonstrate about light?

• Light travels in a curved path

• Light travels in a straight line

• Light can be bent easily

• Light does not travel

What happens when light falls on a polished shining surface?

• It is reflected back

• It passes through

• It is absorbed

• It is scattered

What is a glass plate with silver polishing on one side called?

• Lens

• Prism

• Mirror

• Window

What is the term for light rays reflected in one direction from a smooth surface?

• Irregular reflection

• Regular reflection

• Scattered reflection

• Diffuse reflection

What is the term for light rays reflected in different directions from a rough surface?

• Focused reflection

• Scattered reflection

• Irregular reflection

• Regular reflection

When you move closer to a plane mirror, what happens to the image?

• It disappears

• It stays the same

• It moves closer

• It moves further away

What is the phenomenon called when the left and right sides appear swapped in a mirror?

• Lateral inversion

• Reflection

• Diffraction

• Refraction

How does the size of an image in a plane mirror compare to the object?

• Varies with distance

• Smaller

• Same size

• Larger