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Q1 Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
Ans: 
The objects from which light cannot pass through, are called opaque objects. When any opaque object comes in the path of light, then a dark structure is formed called shadow.
Q2 Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:
Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot
iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.Ans: Opaque: A piece of rock, a CD, smoke, iron, an umbrella, a wall, a sheet of aluminium.
Transparent: Air, water, sheet of plane glass.
Translucent: A sheet of polythene, fog, a sheet of cellophone.
Luminous: A lightened fluorescent tube, flame of gas burner, a lighted torch, firefly, stove, sun, moon.
Non- luminous: A mirror, piece of rock, a wire mesh, iron, a wall.
- The objects through which lights cannot pass are called as opaque objects.
- Objects from which lights can pass easily and we can see clearly through them are called transparent objects.
- The objects from which lights can pass easily but we cannot see clearly are known as translucent objects.
- The objects which emits light are called as luminous.
- The objects which does not emit light are known as non- luminous objects.
Q3 Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?
Ans: Yes, a cylindrical shape is one which gives the circular shadow from one end and a rectangular shadow from another end.
Q4 In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
Ans: No, in a complete dark room we cannot see the reflection in the mirror because reflection is the phenomenon of light. If there is no light then reflection does not occur there and we cannot see our image in the mirror.
Light, Shadows and Reflections Question Answers: NCERT Class 6 Science
Welcome to the Chapter 11 - Light, Shadows and Reflections, Class 6 Science - NCERT Solutions page. Here, we provide detailed question answers for Chapter 11 - Light, Shadows and Reflections.The page is designed to help students gain a thorough understanding of the concepts related to natural resources, their classification, and sustainable development.
Our solutions explain each answer in a simple and comprehensive way, making it easier for students to grasp key topics and excel in their exams. By going through these Light, Shadows and Reflections question answers, you can strengthen your foundation and improve your performance in Class 6 Science. Whether you're revising or preparing for tests, this chapter-wise guide will serve as an invaluable resource.
- Objects around us are of different types.
- Some are opaque, transparent, translucent, luminous, non- luminous around us.
- The objects which emits light are called as luminous whereas, which does not emit light are known as non- luminous objects.
- The object in which the light can pass easily called as transparent whereas the objects from which lights can pass easily but we cannot see clearly are known as translucent objects.
- The objects through which lights cannot pass are called as opaque objects.
- When an object comes in the path of light then the dark structure is formed, called as shadow.
- Reflection may be defined as, when an objects send light back to its path, then an image is formed is known as reflection. For example: image in the mirror, shadow in water etc.
- Bright objects or images can be seen by a pinhole camera. It is made up of cardboard simply.
- Light travels in the straight line, that’s why when any object comes in its path, it makes shadow.
Exercise 1 ( Page No. : 114 )
Key Features of NCERT Class 6 Science Chapter 'Light, Shadows and Reflections' question answers :
- All chapter question answers with detailed explanations.
- Simple language for easy comprehension.
- Aligned with the latest NCERT guidelines.
- Perfect for exam preparation and revision.
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