NCERT Solutions Class 6 Science Chapter 8 Light Shadows and Reflections

NCERT Solutions for Class 6 Science Chapter 8, Light Shadows and Reflections, is highly beneficial for students as it helps them understand the fundamentals of light, develop scientific inquiry skills, and prepare effectively for exams. It also provides valuable insights into the practical applications of these concepts in everyday life.

NCERT Solutions for Class 6 Science - Chapter 8 introduces fundamental concepts of light and its behaviour. The chapter encourages students to observe, experiment, and solve questions about the world around them. 

1.0NCERT Solutions for Class 6 Science Chapter 8 - Light Shadow and Reflections : Free Download!!

Students Can Download PDF of NCERT Solutions Class 6 For Science Chapter 8 from Below for free and Practice from anywhere, Anytime.

2.0Key Topics Covered in NCERT Class 6 Science Chapter 8: Light, Shadows, and Reflections

1. Sources of Light:

• Luminous objects (emit light on their own, e.g., Sun, stars, bulbs)
• Non-luminous objects (do not emit light, e.g., Moon, planets, most objects around us)

2. Properties of Light:

• Travels in a straight line (rectilinear propagation)
• Can be reflected (bounces off surfaces)
• Can be refracted (bends when passing through different mediums)

3. Classification of Objects Based on Light Interaction:

• Transparent: Allow most light to pass through (e.g., glass, air, water)
• Translucent: Allow some light to pass through, but scatter it (e.g., frosted glass, oiled paper)
• Opaque: Do not allow any light to pass through (e.g., wood, metal, stone)

4. Shadow Formation:

• It occurs when an opaque object blocks the path of light.
• The shape of the shadow is related to the shape of the object.

5. Pinhole Camera: A simple camera with a small hole creates an inverted image of an object.
6. Reflection of Light: It occurs when light bounces off a surface.
7. Regular Reflection: Occurs on smooth surfaces (e.g., mirrors), producing a clear image.
8. Diffuse Reflection: Occurs on rough surfaces, scattering light in different directions.

3.0NCERT Solutions Class 6 Science – Light Shadows and Reflections: Points to Remember

1. Luminous Objects:

• Definition: Objects that produce their light.
• Examples: Sun, stars, bulbs, fireflies.

2. Non-Luminous Objects:

• Definition: Objects that do not produce their light.
• Examples: Moon, planets, trees, books, humans.

3. Transparent Objects:

• Definition: Objects that allow most light to pass through them.
• Examples: Glass, air, water.

4. Translucent Objects:

• Definition: Objects that allow some light to pass through but scatter it.
• Examples: Oiled paper, frosted glass.

5. Opaque Objects:

• Definition: Objects that do not allow any light to pass through them.
• Examples: Wood, metal, stone, and thick paper.

6. Rectilinear Propagation of Light:

• Definition: Light travels in a straight line.

7. Shadow:

• Definition: A dark area formed when an opaque object blocks the light path.

8. Reflection of Light:

• Definition: The bouncing back of light when it strikes a surface.

9. Regular Reflection:

• Definition: Reflection from a smooth surface, producing a clear image.
• Example: Reflection in a mirror.

10. Diffuse Reflection:

• Definition: Reflection from a rough surface, scattering light in different directions.
• Example: Reflection from a piece of paper.

11. Pinhole Camera:

• Definition: A simple camera that uses a small hole to create an inverted image of an object.

4.0NCERT Questions with Solutions Class 6 Science Chapter 8 - Detailed Solution

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

• Solution

• Opaque objects make shadows.
• 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? Solution

• When a cylinder is held in sunlight, then a circular shadow or a rectangular shadow can be obtained depending on its orientation related to the Sun. When the top of the cylinder faces the Sun, then the shadow formed is circular. On the other hand, when the side of the cylinder faces the Sun, then the shadow formed is rectangular.
• In a completely dark room, if you hold up a mirror in front of you, will you see your reflection in the mirror ? Solution An image is formed due to reflection of light by a plane mirror. In a completely dark room, there is no light present in the room. Thus, no reflection of light takes place by the mirror placed in the room. Hence, no image will get formed by a mirror in a completely dark room.
• Classify the objects or materials given below as opaque, transparent or translucent, luminous or non-luminous: Air, water, piece of rock, sheet of aluminium, mirror, wooden board, sheet of polythene, $CD$, smoke, sheet of plane glass, fog, piece of red hot iron, umbrella, lighted fluorscent tube, wall, sheet of carbon paper, flame of a gas burner, sheet of cardboard, lighted torch, sheet of cellophane, wire mesh, kerosene stove, sun, firefly, moon.

5.0Key Features - NCERT Solution Science Chapter 8

The NCERT Solutions for Class 6 Science Chapter 8: Light, Shadows, and Reflections offer several key features that make them a valuable resource for students:

• The solutions cover all the important topics and subtopics within the chapter, ensuring that students thoroughly understand the concepts.
• The solutions provide step-by-step explanations for each problem.
• The language used in the solutions is simple and easy to understand.
• The solutions may include diagrams and illustrations to help students visualize the concepts and processes involved, such as the formation of shadows and the reflection of light.