Luminous and Non-Luminous Objects

The video tutorial by Arnab introduces the concepts of luminous and non-luminous objects. Luminous objects emit their own light, such as the Sun and fireflies, while non-luminous objects, like the Moon and Earth, do not emit light and are visible due to luminous objects. The tutorial provides examples and explains how these objects are categorized based on their ability to emit light.

What do you need in order to see objects?

• Sound

• Light

• Water

• Heat

Which of the following is a luminous object?

• Moon

• Earth

• Sun

• Rock

Which of these objects emits light by itself?

• Chair

• Book

• Tree

• Firefly

What is a characteristic of non-luminous objects?

• They are always hot

• They are always invisible

• They emit their own light

• They are visible due to luminous objects

Which of the following is an example of a non-luminous object?

• Electric bulb

• Campfire

• Firefly

• Moon