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![Selina solutions for Concise Physics [English] Class 6 ICSE chapter 5 - Light - Shaalaa.com](/images/concise-physics-english-class-6-icse_6:a1d164c7b3a94be69d1611b80e82a122.jpg "Selina solutions for Concise Physics [English] Class 6 ICSE chapter 5 - Light")
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Solutions for Chapter 5: Light
Below listed, you can find solutions for Chapter 5 of CISCE Selina for Concise Physics [English] Class 6 ICSE.
Selina solutions for Concise Physics [English] Class 6 ICSE 5 Light Short answer questions
Write true or false of the following statement.
The moon is a natural source of light.
True
False
Write true or false of the following statement.
The moon is self-luminous.
True
False
Write true or false of the following statement.
We can see an object through an opaque medium.
True
False
Write true or false of the following statement.
Light passes through glass.
True
False
Write true or false of the following statement.
Light travels in a straight-line path.
True
False
Write true or false of the following statement.
Image formed in a pinhole camera is real.
True
False
Write true or false of the following statement.
The image in a pinhole camera gets blurred if the hole is made bigger.
True
False
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
True
False
Write true or false of the following statement.
Solar eclipse occurs when the sun comes in between the earth and the moon.
True
False
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
Fill in the blank.
Light gives us the sensation of ................
Fill in the blank.
The sun is a ............... source of light.
Fill in the blank
A medium through which light cannot pass is called the ....................
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
Fill in the blank.
Moon is a .................. body.
Fill in the blank.
Light travels in a ................. path.
Fill in the blank.
In a pinhole camera, the image formed is ...............
Fill in the blank.
The darkest portion of a shadow is called the ................
Fill in the blank.
The less dark portion of a shadow is called the .................
Fill in the blank.
Lunar eclipse occurs when the ..........comes in between the ............. and the sun.
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 |
Select the correct alternative.
The natural source of light is
candle flame
electric lamp
sun
kerosene lamp
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
Select the correct alternative.
The luminous body is
a lighted bulb
earth
noon
table
Select the correct alternative.
Umbra is a region of
complete darkness
partial darkness
complete brightness
partial brightness
Select the correct alternative.
Penumbra is a region of
complete darkness
complete brightness
partial brightness
none of the above
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
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 [English] Class 6 ICSE 5 Light Short/Long answer questions
What is light? Define it.
How does light make an object visible?
Name two natural sources of light.
List two artificial sources of light.
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
Is the moon a luminous object?
What do we call a body that shines on its own?
What do we call an electric bulb producing light?
What is a transparent medium? Give two examples.
Explain the difference between a transparent, a translucent, and an opaque medium. Give two examples of each.
What do we call a substance through which we cannot see light? Give an example of such a substance.
What do we call a substance through which light passes? Give an example of such a substance.
Can a transparent medium form an image? Explain your answer.
How can you obtain a point source of light?
Define the terms: a ray of light and a beam of light.
What do you mean by ‘rectilinear propagation of light’?
Describe an experiment to show that light travels in a straight-line path.
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
Name a simple application of the rectilinear propagation of light
What is a pinhole camera? Draw a neat and labelled diagram to show the formation of an image of a lighted candle by it.
Explain the formation of the image of a luminous object in a pinhole camera with the aid of a neat diagram.
State two factors that affect the size of the image formed in a pinhole camera.
Is the image obtained in a pinhole camera erect or inverted? Give reason for your answer.
How is the image affected in a pinhole camera when another fine hole is made near the first pinhole?
State the effect on the image in a pinhole camera if the hole is made bigger.
State the effect on the image in a pinhole camera if the luminous object is moved towards the pinhole.
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).
What is a shadow? Give a reason for its formation.
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?
State two differences between an umbra and a penumbra.
Draw a ray diagram to show the formation of umbra alone.
Draw a ray diagram to show the formation of umbra and penumbra both. Label the parts umbra and penumbra in your diagram.
In the following diagram, draw rays to form umbra on the screen.
In the following diagram, draw rays to form a penumbra on the screen.
State the conditions when only the penumbra of an opaque object is obtained on the screen.
Why is it that the birds flying in the sky do not cast their shadow on the earth?
Why are shadows at noon shorter than in the morning or in the evening?
What is an eclipse? Name the two types of eclipses.
When does a lunar eclipse take place? Does it occur on every full moon’s night?
Draw a diagram to show the formation of the lunar eclipse.
When does a solar eclipse take place? Does it occur on even’ new moon’s day?
Draw a diagram to show the formation of the solar eclipse.
What is the annular solar eclipse? Draw a labelled diagram to show its formation.
Selina solutions for Concise Physics [English] Class 6 ICSE 5 Light Additional questions 1
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 [English] Class 6 ICSE 5 Light Additional questions 2
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 [English] Class 6 ICSE 5 Light Additional questions 3
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 [English] Class 6 ICSE 5 Light Exercises 1
Tick the correct answer.
Light causes
Sensation of heat
Sensation of vision
Sensation of sound
None of these
Tick the correct answer.
Light is a font of
Work
Energy
Power
None of these
Tick the correct answer.
The natural source of light is
Sun
Electric lamp
Candle flame
Kerosene lamp
Tick the correct answer.
A tube light is a
Hot source
Cold source
Incandescent source
None of these
Tick the correct answer
Glass is
Opaque
Luminous
Transparent
None of these
Tick the correct answer.
Substance which don’t allow light to pass through them,
Transparent substance
Opaque substance
Translucent substances
Non-luminous substance
Tick the correct answer.
The image formed in a pinhole camera is
inverted
upright
always enlarged
always diminished
Tick the correct answer.
Shadow forms on the
Opposite side of the object
Same side of the object
On the same plane of the object
None of these
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
Tick the correct answer.
Umbra is a region of
Partial darkness
Partial brightness
Complete brightness
Complete darkness
Selina solutions for Concise Physics [English] Class 6 ICSE 5 Light Exercises 2
Fill in the blank
The Sun and .............. are the natural sources of light.
Fill in the blank
There are ........... and man-made ............ of light.
Fill in the blank
The brightness of light is measured in ...................
Fill in the blank
Shadows are formed when .......... blocks ..............
Fill in the blank
Eclipses are the formation of ............ in nature.
Fill in the blank
A lunar eclipse is formed on .............. day.
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Fill in the blank
Light consists of .............. colours.
Fill in the blank
Pinhole camera is based on the ................... propagation of light.
Fill in the blank
A solar eclipse occurs only on a ....................
Fill in the blank
Speed of light in vacuum is .................
Selina solutions for Concise Physics [English] Class 6 ICSE 5 Light Exercises 3
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 [English] Class 6 ICSE 5 Light Exercises 4
Write true or false
The moon has its own light.
True
False
Write true or false
The earth has its own light.
True
False
Write true or false
The stars have no light.
True
False
Write true or false
Opaque objects do not allow light to pass through them.
True
False
Write true or false
Image formed in a pinhole camera is erect.
True
False
Selina solutions for Concise Physics [English] Class 6 ICSE 5 Light Exercises 5
Answer the following.
What is light?
Answer the following.
List four natural sources of light.
Answer the following.
Write down five man-made sources of light.
Answer the following.
What is meant by luminous intensity? What is one lumen?
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
Answer the following.
List two transparent objects.
Answer the following.
Name some sources of light that are not hot.
Answer the following.
How is a shadow formed? Write the conditions required for a shadow to form.
Answer the following.
Differentiate between luminous and non-Luminous objects.
Answer the following.
How can you see the solar eclipse safely?
Solutions for 5: Light
Selina solutions for Concise Physics [English] Class 6 ICSE chapter 5 - Light
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Concepts covered in Concise Physics [English] Class 6 ICSE chapter 5 Light are Light, Sources of Light, Luminous and Non-luminous Bodies, Important Terms Related to Light, The propagation of light, A Pinhole Camera, Formation of Shadow, Formation of Shadow, Eclipse - an Astronomical Event.
Using Selina Concise Physics [English] Class 6 ICSE solutions Light exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Concise Physics [English] Class 6 ICSE students prefer Selina Textbook Solutions to score more in exams.
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