Light Reflection and Properties

The video tutorial explains the concept of reflection of light, covering natural and artificial light sources, luminous and non-luminous objects, and the properties of light. It discusses how light travels through different mediums and the types of reflection, including regular and irregular reflection. An experiment with a plane mirror is demonstrated to show how light reflects and creates images.

What is the primary characteristic of light that allows it to be detected by the human eye?

• It is a chemical reaction.

• It is an electromagnetic radiation.

• It is a form of sound energy.

• It is a gravitational force.

Which of the following is NOT a natural source of light?

• The Sun

• A star

• A light bulb

• A firefly

What type of objects can emit their own light?

• Non-luminous objects

• Translucent objects

• Opaque objects

• Luminous objects

Which medium allows light to pass through completely?

• Transparent medium

• Reflective medium

• Translucent medium

• Opaque medium

What happens when light falls on an opaque object?

• It is amplified.

• It is completely blocked.

• It passes through partially.

• It passes through completely.

What is the term for light returning to its original medium after hitting a surface?

• Reflection

• Diffusion

• Absorption

• Refraction

What type of reflection occurs on a smooth surface?

• Irregular reflection

• Regular reflection

• Diffuse reflection

• Scattered reflection

In the plane mirror experiment, what was used to demonstrate the reflection of light?

• A comb and torch

• A lens

• A prism

• A magnifying glass

What observation can be made about parallel light rays when they reflect off a plane mirror?

• They scatter in all directions.

• They converge at a point.

• They become perpendicular.

• They remain parallel.

What is the main takeaway from the plane mirror experiment?

• Light travels in a straight line.

• Light can bend around corners.

• Light cannot be reflected.

• Light is absorbed by mirrors.