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# Selina solutions for Concise Physics Class 6 ICSE chapter 5 - Light [Latest edition]

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## Chapter 5: Light

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Short answer questions, short answer questions

Short answer questions | Q 1.01

Write true or false of the following statement.

The moon is a natural source of light.

• True

• False

Short answer questions | Q 1.02

Write true or false of the following statement.

The moon is self-luminous.

• True

• False

Short answer questions | Q 1.03

Write true or false of the following statement.

We can see an object through an opaque medium.

• True

• False

Short answer questions | Q 1.04

Write true or false of the following statement.

Light passes through glass.

• True

• False

Short answer questions | Q 1.05

Write true or false of the following statement.

Light travels in a straight-line path.

• True

• False

Short answer questions | Q 1.06

Write true or false of the following statement.

Image formed in a pinhole camera is real.

• True

• False

Short answer questions | Q 1.07

Write true or false of the following statement.

The image in a pinhole camera gets blurred if the hole is made bigger.

• True

• False

Short answer questions | Q 1.08

Write true or false of the following statement.

A shadow is formed because light travels in a straight-line path.

• True

• False

Short answer questions | Q 1.09

Write true or false of the following statement.

Solar eclipse occurs when the sun comes in between the earth and the moon.

• True

• False

Short answer questions | Q 1.1

Write true or false of the following statement.

If the shadow of earth falls on the moon, the eclipse is called the lunar eclipse.

• True

• False

Short answer questions | Q 2.01

Fill in the blank.

Light gives us the sensation of ................

Short answer questions | Q 2.02

Fill in the blank.

The sun is a ............... source of light.

Short answer questions | Q 2.03

Fill in the blank

A medium through which light cannot pass is called the ....................

Short answer questions | Q 2.04

Fill in the blank.

A medium which allows light to pass through it easily is called the ...................

Short answer questions | Q 2.05

Fill in the blank.

Moon is a .................. body.

Short answer questions | Q 2.06

Fill in the blank.

Light travels in a ................. path.

Short answer questions | Q 2.07

Fill in the blank.

In a pinhole camera, the image formed is ...............

short answer questions | Q 2.08

Fill in the blank.

The darkest portion of a shadow is called the ................

Short answer questions | Q 2.09

Fill in the blank.

The less dark portion of a shadow is called the .................

Short answer questions | Q 2.1

Fill in the blank.

Lunar eclipse occurs when the ..........comes in between the ............. and the sun.

Short answer questions | Q 3

Match the following columns

 Column A Column B a. Wooden block i. new moon's day b. Sun ii. rectilinear propagation of light c. Umbra iii. opaque body d. Eclipse iv. luminous body e. Solar eclipse v. complete dark park
Short answer questions | Q 4.1

Select the correct alternative.

The natural source of light is

• candle flame

• electric lamp

• sun

• kerosene lamp

Short answer questions | Q 4.2

Select the correct alternative.

The formation of inverted image in a pinhole camera shows that

• light enables us to see

• light travels in a straight line path

• light can pass through the pinhole

• light does not pass through the pinhole

Short answer questions | Q 4.3

Select the correct alternative.

The luminous body is

• a lighted bulb

• earth

• noon

• table

Short answer questions | Q 4.4

Select the correct alternative.

Umbra is a region of

• complete darkness

• partial darkness

• complete brightness

• partial brightness

Short answer questions | Q 4.5

Select the correct alternative.

Penumbra is a region of

• complete darkness

• complete brightness

• partial brightness

• none of the above

Short answer questions | Q 4.6

Select the correct alternative.

Solar eclipse occurs on

• every new moon’s day

• certain new moon’s day

• every full moon’s day

• certain full moon’s day

Short answer questions | Q 4.7

Select the correct alternative.

Lunar eclipse occurs on

• every full moon’s night

• certain full moon’s night

• every new moon’s day

• certain new moon’s day

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Short/Long answer questions

Short/Long answer questions | Q 1

What is light? Define it.

Short/Long answer questions | Q 2

How does light make an object visible?

Short/Long answer questions | Q 3

Name two natural sources of light.

Short/Long answer questions | Q 4

List two artificial sources of light.

Short/Long answer questions | Q 5

Differentiate between the luminous and non-luminous bodies. Give two examples of each.

Short/Long answer questions | Q 6

Is the moon a luminous object?

Short/Long answer questions | Q 7

What do we call a body that schemes on its own?

Short/Long answer questions | Q 8

What do we call an electric bulb producing light?

Short/Long answer questions | Q 9

What is a transparent medium? Give two examples.

Short/Long answer questions | Q 10

Explain the difference between a transparent, a translucent, and an opaque medium. Give two examples of each.

Short/Long answer questions | Q 11

What do we call a substance through which we cannot see light? Give an example of such a substance.

Short/Long answer questions | Q 12

What do we call a substance through which light passes? Give an example of such a substance.

Short/Long answer questions | Q 13

Short/Long answer questions | Q 14

How can you obtain a point source of light?

Short/Long answer questions | Q 15

Define the terms: a ray of light and a beam of light.

Short/Long answer questions | Q 16

What do you mean by ‘rectilinear propagation of light’?

Short/Long answer questions | Q 17

Describe an experiment to show that light travels in a straight-line path.

Short/Long answer questions | Q 18

In which of the following two arrangements (a) and (b) shown in the diagram, you can see the light of the bulb? Explain Your answer

Short/Long answer questions | Q 19

Name a simple application of the rectilinear propagation of light

Short/Long answer questions | Q 20

What is a pinhole camera? Draw a neat and labelled diagram to show the formation of an image of a lighted candle by it.

Short/Long answer questions | Q 21

Explain the formation of the image of a luminous object in a pinhole camera with the aid of a neat diagram.

Short/Long answer questions | Q 22

State two factors that affect the size of the image formed in a pinhole camera.

Short/Long answer questions | Q 23

Is the image obtained in a pinhole camera erect or inverted? Give reason for your answer.

Short/Long answer questions | Q 24

How is the image affected in a pinhole camera when another fine hole is made near the first pinhole?

Short/Long answer questions | Q 25.1

State the effect on the image in a pinhole camera if the hole is made bigger.

Short/Long answer questions | Q 25.2

State the effect on the image in a pinhole camera if the luminous object is moved towards the pinhole.

Short/Long answer questions | Q 25.3

State the effect on the image in a pinhole camera if The length of the pinhole camera is increased (length the screen is moved away from the pinhole).

Short/Long answer questions | Q 26

What is a shadow? Give a reason for its formation.

Short/Long answer questions | Q 27

Draw a ray diagram to show the formation of the shadow of an opaque object by a point source of light. How is the size of shadow affected if the screen is moved away from the object?

Short/Long answer questions | Q 28

State two differences between an umbra and a penumbra.

Short/Long answer questions | Q 29

Draw a ray diagram to show the formation of umbra alone.

Short/Long answer questions | Q 30

Draw a ray diagram to show the formation of umbra and penumbra both. Label the parts umbra and penumbra in your diagram.

Short/Long answer questions | Q 31.1

In the following diagram, draw rays to form umbra on the screen.

Short/Long answer questions | Q 31.2

In the following diagram, draw rays to form a penumbra on the screen.

Short/Long answer questions | Q 32

State the conditions when only the penumbra of an opaque object is obtained on the screen.

Short/Long answer questions | Q 33

Why is it that the birds flying in the sky do not cast their shadow on the earth?

Short/Long answer questions | Q 34

Why are shadows at noon shorter than in the morning or in the evening?

Short/Long answer questions | Q 35

What is an eclipse? Name the two types of eclipses.

Short/Long answer questions | Q 36

When does a lunar eclipse take place? Does it occur on every full moon’s night?

Short/Long answer questions | Q 37

Draw a diagram to show the formation of the lunar eclipse.

Short/Long answer questions | Q 38

When does a solar eclipse take place? Does it occur on even’ new moon’s day?

Short/Long answer questions | Q 39

Draw a diagram to show the formation of the solar eclipse.

Short/Long answer questions | Q 40

What is the annular solar eclipse? Draw a labelled diagram to show its formation.

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Additional questions

Name any four man made sources of light.

Why do objects in a room become visible even if sunlight does not enter it?

Does the flame of a gas stove emit light?

Name a few living things which emit light.

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Additional questions

From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Additional questions

Write the names of some transparent objects.

What happens in a solar eclipse?

What do you understand by candle power?

Write the names of some cold light-emitting objects.

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Exercises

Exercises | Q 1.01

Light causes

• Sensation of heat

• Sensation of vision

• Sensation of sound

• None of these

Exercises | Q 1.02

Light is a font of

• Work

• Energy

• Power

• None of these

Exercises | Q 1.03

The natural source of light is

• Sun

• Electric lamp

• Candle flame

• Kerosene lamp

Exercises | Q 1.04

A tube light is a

• Hot source

• Cold source

• Incandescent source

• None of these

Exercises | Q 1.05

Glass is

• Opaque

• Luminous

• Transparent

• None of these

Exercises | Q 1.06

Substance which don’t allow light to pass through them,

• Transparent substance

• Opaque substance

• Translucent substances

• Non-luminous substance

Exercises | Q 1.07

The image formed in a pinhole camera is

• inverted

• upright

• always enlarged

• always diminished

Exercises | Q 1.08

• Opposite side of the object

• Same side of the object

• On the same plane of the object

• None of these

Exercises | Q 1.09

When the moon comes in between the sun and the earth, and all three are in a straight line, then it is

• Solar eclipse

• Lunar eclipse

• Either solar eclipse or lunar eclipse

• No eclipse

Exercises | Q 1.1

Umbra is a region of

• Partial darkness

• Partial brightness

• Complete brightness

• Complete darkness

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Exercises

Exercises | Q 1.01

Fill in the blank

The Sun and .............. are the natural sources of light.

Exercises | Q 1.02

Fill in the blank

There are ........... and man-made ............ of light.

Exercises | Q 1.03

Fill in the blank

The brightness of light is measured in ...................

Exercises | Q 1.04

Fill in the blank

Shadows are formed when .......... blocks ..............

Exercises | Q 1.05

Fill in the blank

Eclipses are the formation of ............ in nature.

Exercises | Q 1.06

Fill in the blank

A lunar eclipse is formed on .............. day.

Exercises | Q 1.07

Fill in the blank

A ............. is formed when the path of light is obstructed by an ..............

Exercises | Q 1.08

Fill in the blank

Light consists of .............. colours.

Exercises | Q 1.09

Fill in the blank

Pinhole camera is based on the ................... propagation of light.

Exercises | Q 1.1

Fill in the blank

A solar eclipse occurs only on a ....................

Exercises | Q 1.11

Fill in the blank

Speed of light in vacuum is .................

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Exercises

Exercises | Q 1

Match the following

 Column A Column B 1. Transparent object i. Football 2. Eclipses ii. Glass 3. Translucent object iii. Fluorescent tube 4. Luminous object iv. Tracing paper 5. Non - luminous object v. Shadows

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Exercises

Exercises | Q 1

Write true or false

The moon has its own light.

• True

• False

Exercises | Q 2

Write true or false

The earth has its own light.

• True

• False

Exercises | Q 3

Write true or false

The stars have no light.

• True

• False

Exercises | Q 4

Write true or false

Opaque objects do not allow light to pass through them.

• True

• False

Exercises | Q 5

Write true or false

Image formed in a pinhole camera is erect.

• True

• False

#### Selina solutions for Concise Physics Class 6 ICSE Chapter 5 LightExercise Exercises

Exercises | Q 1

What is light?

Exercises | Q 2

List four natural sources of light.

Exercises | Q 3

Write down five man-made sources of light.

Exercises | Q 4

What is meant by luminous intensity? What is one lumen?

Exercises | Q 5

Distinguish between transparent, translucent, and opaque objects.

Exercises | Q 6

List two transparent objects.

Exercises | Q 7

Name some sources of light that are not hot.

Exercises | Q 8

How is a shadow formed? Write the conditions required for a shadow to form.

Exercises | Q 9

Differentiate between luminous and non-Luminous objects.

Exercises | Q 10

How can you see the solar eclipse safely?

## Selina solutions for Concise Physics Class 6 ICSE chapter 5 - Light

Selina solutions for Concise Physics Class 6 ICSE chapter 5 (Light) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Physics Class 6 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Physics Class 6 ICSE chapter 5 Light are Concept of Light, Rectilinear Propagation of Light, Applications of Rectilinear Propagation of Light, Pinhole Camera - Principle and Working, Pinhole Camera - Factors on Which the Size of the Image Produced Depends on, Shadows - Umbra, Shadows - Penumbra, Shadows - Natural Shadows – Eclipses.

Using Selina Class 6 solutions Light exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 6 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 5 Light Class 6 extra questions for Concise Physics Class 6 ICSE and can use Shaalaa.com to keep it handy for your exam preparation

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