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Ncert exemplar Solutions Class 6 Science Light
Welcome to NCTB Solutions. Here with this post we are going to help 6th class students for the Solutions of NCERT Exemplar Class 6 Science Book, Chapter 11, Light. Here students can easily find step by step solutions of all the problems for Light, Also here our Science teacher’s are solved all the questions with easily understandable language with proper guidance so that all the students can understand easily.
Light all Questions Solution :
Multiple Choice Questions :
Question no – (1)
Observe the picture given in Fig. 11.1 carefully.
Answer :
The correct answer is option – (c)
A mirror is kept at position A to get this patch of light.
Question no – (2)
A student observes a tree given in Fig. 11.2 through a pin hole camera. Which of the diagrams given in Fig. 11.3 (a) to (d), depicts the image seen by her correctly?
Answer :
The correct answer is option – (b)
Question no – (3)
Four students A, B, C and D looked through pipes of different shapes to see a candle flame as shown in Fig. 11.4.
Answer :
The correct answer is option – (d) D
Question no – (4)
Which of the following is/are not always necessary to observe a shadow?
Answer :
The correct answer is option – (a)
Sun is/are not always necessary to observe a shadow.
Question no – (5)
Paheli observed the shadow of a tree at 8 : 00 a.m., 12 : 00 noon and 3 : 00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow?
Answer :
The correct option is – (c)
Both the size and shape of the shadow of the tree change.
Question no – (6)
Which of the following can never form a circular shadow?
Answer :
The appropriate option is – (c)
A shoe box can never form a circular shadow.
Question no – (7)
Two students while sitting across a table looked down on to its top surface. They noticed that they could see their own and each other’s image. The table top is likely to be made of
Answer :
The correct option is – (c)
The table top is likely to be made of glass sheet.
Very Short Answer Questions :
Question no – (8)
Answer :
The image formed by the three opaque strips will be the same since the holes in all of them will act as a pinhole.
Question no – (9)
Answer :
The sheet must be made from some transparent materials as light is passing through it.
Question no – (10)
Answer :
The light from torch A will not form a shadow on the screen since it is placed parallel to the screen.
Question no – (11)
Answer :
There will be no difference in the shadow formed on both the screen.
Short Answer Questions :
Question no – (12)
Answer :
The correct statement is – (i) The colour of the shadow of an object does not depends on the colour of the object.
The correct statement is – (ii) Transparent objects allows light to pass through them completely.
Question no – (13)
Answer :
During a football or a cricket match we can see multiple shadows of players because of the presence of multiple lights sources.
Question no – (14)
Answer :
The bird or the aeroplane does not cast it’s shadow even on a sunny day.
The bird or the aeroplane must fly close to the ground in order for a shadow to form.
Question no – (15)
Answer :
The two ways to make a transparent glass translucent are –
• Applying product such as oil, butter.
• Or rubbing the surface of the glass with some coarse materials.
Question no – (16)
Answer :
Fig. 11.9 :
The shadow “a” is formed by the torch at position “A”.
The shadow “b” is formed by the torch at position “ B”.
Fig. 11.10 :
The shadow “a” is formed by the torch at position “A”.
The shadow “b” is formed by the torch at position “ B”.
Question no – (17)
Answer :
It does not matter if the source of light is red, green or blue because irrespective of the light the shadow formed will always be black as it forms in an area where light can’t reach.
Question no – (18)
Answer :
The air around us is not always transparent because often smoke, fog and smog make it hard to see through.
Question no – (19)
Answer :
The shadow formed by the blue, green and red towel is black in colour.
Question no – (20)
Answer :
The colour of the shirts in the image will be identical to the colour of the shirts the friends were wearing that is red and yellow.
Question no – (22)
Answer :
We are unable to see the shadow when the football is kicked in the air because the distance between the ground and football is too high for a shadow to form on the ground.
Question no – (23)
Answer :
The shadows might not have formed because the screen might have been too far from the object or the source of light might have been too far from the object or the beam of torch is falling parallel to the screen or the source of light, object and screen were not aligned in a straight line.
Question no – (24)
Answer :
No, the shadow will not be formed in every case.
The sheet of plywood will form a dark shadow because it restricts all the light , the piece of muslin will form a shadow as it allows a little bit of light to pass through it and the transparent glass does not forms a shadow because it allows all of the light to pass through it.
Next Chapters Solution :
👉 Food : Where Does It Come From?
👉 Sorting Materials and Groups
👉 The Living Organisms and their Surroundings
👉 Motion and Measurement of Distances
👉 Water
👉 Garbage in, Garbage out
