NCERT Class 6 Science Chapter 11 Light Shadows and Reflections Extra Questions and Answers
Class 6 Science Chapter 11 Extra Inside Questions and Answers – Light Shadows and Reflections. Here in this Page Class VI Students can Learn Extra Questions & Answer 11th Chapter Science fully Inside.
We Provided Here Light Shadows and Reflections Science Chapter 11 Long Answer Type Question, MCQ Questions & Answer, Short Answer Type Questions (2 or 3 marks), and Very Short answer Type Question (1 marks).
Class 6 Science Chapter 11 Extra Question with Answer – Light Shadows and Reflections
Science Chapter 11 Light Shadows and Reflections Class 6 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
MCQ Type Extra Questions
(1) Which of the following is a luminous body ?
(a) Sun
(b) Earth
(c) Moon
(d) Satellite
Ans:- (a) Sun
(2) Which of the following is a non-luminous body?
(a) Star
(b) Moon
(c) Jugnu
(d) Sun
Ans:- (b) Moon
(3) The mirror image of “SMART” will be
(a) TAMSR
(b) SMRAT
(c) TAЯMAƧ
Ans:- (c) TAЯMAƧ
(4) Shadows are formed when an _________ object comes in the path of the light.
(a) translucent
(b) transparent
(c) opaque
(d) luminous
Ans:- (c) opaque
(5) The shape of the shadows depends on:
(a) the shape of the object.
(b) the position of the sources of light
(c) the size of the source of light.
(d) all of the above.
Ans:- (d) all of the above.
Very Short Answer Type Extra Questions
(1) Give two examples of luminous objects.
Solution:
Sun, Bulb, etc.
(2) What is the difference between light emitted by the moon and the sun?
Solution:
The sun is a luminous body which emits its own light whereas moon reflects the sunlight falling on it.
(3) Give one example of an artificial source of light.
Solution:
Bulb, Torch etc.
(4) Write the characteristics of an image formed by a pinhole camera.
Solution:
The image formed by a pinhole camera is real and inverted.
(5) Define opaque. Give 2 examples.
Solution:
The objects through which light can’t pass at all are called opaque objects. Eg: wood, iron sheet.
- In case you have missed:- Previous Chapter Extra Questions
Short Answer Type Extra Questions
(1) Define translucent transparent object.
Solution:
Translucent object – The objects through which light can pass partially are called translucent onjects.
Transparent object – The objects which allow the light to pass through them completely are called transparent objects.
(2) Why we cannot see our image in the mirror in a complete dark room?
Solution:
We can’t see our image in a complete dark room because three is no light to reflect, therefore no images is formed.
(3) What is reflection ?
Solution:
When light falls on a shiny surface, the light rays bounce back. This phenomenon is called reflection of light.
(4) You are given few objects. How will you test whether any one of the objects is translucent or not?
Solution:
We will hold the object in front of the light sources and allow it to pass through it. If the light passes partially, it is a translucent object.
(5) Is the shadow of the object coloured ? Explain giving reason.
Solution:
A shadow can never be coloured because it is formed when an opaque object obstructs the path of light, hence a dark patch is formed.
Long Answer Type Extra Questions
(3) Describe a simple activity to show that light travels in a straight line.
Solution: AIM – To show that light travels in a straight line.
MATERIAL REQUIRED- Candle, pipe (flexible)
PROCEDRE –
(a) Place a candle on a table.
(b) Look at the candle through a straight hollow pipe.
(c) Look at the candle through a bent pipe.
OBSERVATION – The candle is visible through the straight pipe and not through a bent pipe.
CONSCLUSION – This shows light travels in a straight line.
(4) Differentiate between a shadows and an image.
Solution: Shadow – it is formed when an opaque object obstructs the path of light.
Shadows are always dark or black.
Image – it is formed when light is reflected by an object.
Images are always colourful.
Source: Diksha
More Extra Questions:
1) Multiple choice questions:
a) ____reflection gives us clear images?
a) Mirror b) Water
Ans: a) Mirror
b) Light travels in ____ line?
a) Curve b) Straight
Ans: b) Straight
c) A ____ camera can be used to image the Sun and brightly lit objects?
a) Pinhole camera b) Compact camera c) Action camera
Ans: a) Pinhole camera
d) A cardboard is a _____ object?
a) Translucent b) Luminous c) Transparent d) Opaque
Ans: d) Opaque
2) Fill in the blanks:
a) Shadows are formed when an_____ object comes in the path of light.(Opaque)
b) We can see things clearly through _____ objects.(Transparent)
c) Sun is a_____ object.(Luminous)
d) _____objects allow light to pass through them partially.(Translucent)
3) Mark your answer as per the codes provide below:
a) A: Glass is a transparent object.
R:) Glass allows light to pass through them.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
Ans: I. Both A and R are true and R is the correct explanation of A.
b) A: Frosted glass is an opaque object.
R:) Frosted glass allows light to pass through them partially.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
Ans: IV. A is false but R is true.
4) Answer the following questions:
a) What is opaque object? Give two examples.
Ans: The objects that do not allow light to pass through them, are called opaque objects.
Example – wall and metal sheet.
b) Give two examples of luminous and non-luminous objects.
Ans: Luminous object – A lighted candle and sun.
Non-luminous object – Moon and tree.
c) Name some sources of light.
Ans: Sun, a lighted candle, a glowing bulb.
d) What do you mean by reflection of light? What happens when light falls on a mirror?
Ans: The process of sending back the light rays which fall on the surface of an object, is called reflection of light.
When light falls on a mirror, the silvered surface of the mirror does not allow the light to pass through it. The mirror reflects most of the light falling on it.
5) Classify the following into transparent, opaque and translucent objects:
Air, tissue, wooden door, plastic, water
Ans: Air – Transparent,
Tissue – Opaque,
Wooden door – Opaque,
Plastic – Translucent,
Water – Transparent.
6) Shadows give us some information about shapes of objects. Sometimes shadows can also mislead us about the shape of the object.
a) What things does it require to see a shadow?
Ans: It requires a source of light and an opaque object to see a shadow.
b) Does the length of shadow of a tree change according to the position of the sun? (Yes/No)
Ans: Yes.
- In case you have missed:- Next Chapter Extra Questions