NCERT Solutions for Class 6 Science Chapter 11 Light, Shadow And Reflections

NCERT Solutions Class 6 Science Chapter 11 Updated for 2024-25

NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows, and Reflections provided here will aid you in a better understanding of the concepts involved in the CBSE Class 6 syllabus(2024 – 25). Detailed answers and explanations provided on this page will clear all your doubts on concepts of light. These NCERT Solutions are a crucial resource as Chapter 11 has a good weightage of marks being asked in the Class 6 examination every year. Light is also a very basic concept to which many advanced topics are interrelated. Hence, it is very important for the students to get well versed with this Chapter’s solutions.

Chapter 11 of NCERT Solutions for Class 6 Science covers the concept of opacity, transparent objects, translucent objects, the formation of shadows, concepts of reflection, forming pinhole camera, mirror, and its uses. NCERT Solutions is one of the best ways to strengthen one’s skills and knowledge. It contains all the relevant study material that can help the students score well in the examinations. This is an important chapter from the examination perspective.

Light Shadow and Reflection Class 6 Questions and Answers PDF

Here are all the NCERT textbook class 6 chapter 11 questions and answers pdf:

LIGHT, SHADOWS & REFLECTION

NCERT Class 6 Science Chapter 11 Questions and Answers

1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects.

A.

2. Classify the objects or materials given below as opaque, transparent, 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 cellopane, a wire mesh, kerosene stove, sun, firefly, moon.

A.Transparent Objects: Air, water, a sheet of plane glass, a wire mesh.

Opaque objects: A piece of rock, a wooden board, an umbrella, a sheet of aluminium, a mirror, a wall, a sheet of carbon paper, a sheet of card board.

Translucent objects : A sheet of polythene, smoke, fog, a sheet of cellopane.

Luminous objects: The sun, a sheet of red hot iron, a lighted fluorescent tube, a flame of a gas burner,
a lighted torch, kerosene stove, firefly.

Non-luminous objects : Air, water piece of rock, sheet of aluminium, sheet of polythene, wooden board, a CD, smoke, moon, etc.

3. Can you think of creating a shape that would give a circular shadow if held in one way and rectangular shadow if held in another way ?

A.Yes. If the base of cylinder is focused to light, it gives circular shadow.

If the cylinder is focused horizontally on the light, it gives a rectangular shadow.

4. 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?

A.No. It is not possible because we do not have source of light. So, a reflection of light does not take place. Hence, we can not see images in the mirror.

NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows and Reflections Important topics are listed below:

• Transparent, opaque, and translucent objects
• What exactly are shadows?
• A pinhole camera
• Mirrors and reflections

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Also Check: NCERT Solutions for Class 6 Science All Chapters

• Chapter 1 Food: Where Does It Come From?
• Chapter 2 Components of Food
• Chapter 3 Fibre to Fabric
• Chapter 4 Sorting Materials Into Groups
• Chapter 5 Separation of Substances
• Chapter 6 Changes Around Us
• Chapter 7 Getting to Know Plants
• Chapter 8 Body Movements
• Chapter 9 The Living Organisms and Their Surroundings
• Chapter 10 Motion and Measurement of Distances
• Chapter 12 Electricity and Circuits
• Chapter 13 Fun with Magnets
• Chapter 14 Water
• Chapter 15 Air Around Us
• Chapter 16 Garbage In, Garbage Out

Import Topics Covered in Class 6 Science Chapter 11

Here are the key topics covered in NCERT Class 6 Science Chapter 11 Light, Shadows and Reflections:

Transparent, Opaque and Translucent Objects

• Luminous and non-luminous objects
• Transparent objects allow light to pass through without scattering (e.g. glass)
• Translucent objects allow some light to pass through (e.g. butter paper)
• Opaque objects do not allow any light to pass through (e.g. wood, metal)

What are Shadows?

• A shadow is formed when an opaque object blocks light from a source
• Shadows are formed on a screen like the ground or wall
• Shadows give an idea of the shape of objects, but can be misleading

The Pinhole Camera

• A pinhole camera is a simple camera with a light-proof box, a screen, and a small aperture
• Light enters through the hole and forms an inverted image on the screen

Mirrors and Reflection

• Mirrors are shiny surfaces that reflect light to form clear images
• Reflection is the bouncing back of light from a surface
• Plane mirrors form virtual, erect images of the same size as the object

Rectilinear Propagation of Light

• Light travels in straight lines, taking the quickest path between two points
• This is known as the rectilinear propagation of light

FAQs on NCERT Solutions for Class 6 Science Chapter 11 Light Shadow and Reflection

What are Light, Shadows, and Reflections?

Light is a form of energy that helps us see things. Shadows are dark shapes that appear when an object blocks light. Reflections happen when light bounces off a surface, allowing us to see images of objects.

How is a Shadow Formed?

A shadow is formed when an object blocks the path of light. When light hits the object, it cannot pass through, creating a dark area on the other side. The size and shape of the shadow depend on the light source and the object.

What is Called Reflection of Light?

The reflection of light is when light bounces off a surface. For example, when you look in a mirror, you see your reflection because the light from you hits the mirror and bounces back to your eyes.

What are the 3 Types of Shadows?

Umbra: This is the darkest part of a shadow where no light reaches. Penumbra: This is the lighter part of the shadow that is partially shaded and has some light. Antumbra: This occurs when the light source is smaller than the object, creating a shadow that is lighter in the center.

What are the 3 Types of Reflection of Light?

Regular Reflection: This happens on smooth surfaces, like mirrors, where light reflects at the same angle it hits. Diffused Reflection: This occurs on rough surfaces, like paper, where light scatters in different directions. Total Internal Reflection: This happens when light hits a boundary at a steep angle and reflects completely back into a medium, like in optical fibers.