Light Shadows and Reflections Class 7 MCQ Questions Science Chapter 11

Students can solve these Class 7 Science MCQ and Class 7 Science Chapter 11 Light Shadows and Reflections MCQ Questions Online Test with Answers to assess their preparation level.

Class 7 Light Shadows and Reflections MCQ with Answers

MCQ on Light Shadows and Reflections Class 7

Class 7 Science Chapter 11 Light Shadows and Reflections MCQ Questions with Answers

Question 1.
We can see a non-luminous object when light
(a) emitted by the object falls on the eye
(b) is reflected from the object towards our eye
(c) completely passes through the object
(d) gets completely absorbed by the object
Answer:
(b) is reflected from the object towards our eye

Question 2.
The number of capital letters such as A, B, C, D which are not laterally inverted by a plane mirror?
(a) 6
(b) 7
(c) 11
(d) 13
Answer:
(c) 11

Question 3.
If you write your name or any other word or sentence on a piece of paper and hold it in front of a plane mirror, how does it appear in the mirror?
(a) The letters get laterally inverted
(b) The letters get transversely inverted
(c) The letters remain unchanged
(d) None of the above
Answer:
(a) The letters get laterally inverted

Question 4.
Which letter’s image on a plane mirror will not be inverted sideways? CBSE Diksha, Competency Based Que.
(a) L
(b) P
(c) M
(d) B
Answer:
(c) M

Question 5.
A tiny mirror Mis fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in figure as A, B, C and D. In which position, mirror will be visible?

Answer:

Question 6.
A virtual image
(a) can be formed on the screen
(b) cannot be formed on the screen
(c) is formed only by a plane mirror
(d) is formed only by the convex mirror
Answer:
(b) cannot be formed on the screen

Question 7.
An object, represented by a x arrow, is placed in front of a plane miror. Which of the diagrams in below figures correctly describes the image, repesented by the arrow?

Answer:

Question 8.
Which diagram best shows the reflection of light?

Answer:

Question 9.
Which of these objects reflects light?
(a) The sun
(b) The moon
(c) A glowing bulb
(d) Burning wood
Answer:
(b) The moon

Question 10.
A students wraps a torch with butter paper. The light appears dim and scattered. What is butter paper in this case?
(a) Transparent
(b) Opaque
(c) Reflective
(d) Translucent
Answer:
(d) Translucent

Question 11.
Which object allows light to pass through it completely without scattering?
(a) Trinted window
(b) Frosted glass
(c) Clear glass
(d) Wax paper
Answer:
(c) Clear glass

Question 12.
Which of the following materials is most suitable for making the mirrors inside a kaleidoscope?
(a) Plastic sheet
(b) Rough glass
(c) Plane mirror
(d) Aluminium foil
Answer:
(c) Plane mirror

Question 13.
What would happen if mirrors inside a kaleidoscope are replaced with black paper?
(a) Patterns will become more colorful
(b) Patterns will not be seen
(c) Light will reflect better
(d) More symmetrical designs will appear
Answer:
(b) Patterns will not be seen

Question 14.
The nature of image formed by a plane mirror is
(a) always virtual
(b) always inverted
(C) always real
(d) real and virtual
Answer:
(a) always virtual

Question 15.
The light ray after reflection from a surface is known as
(a) normal ray
(b) refracted ray
(c) reflected rays
(d) incident ray
Answer:
(c) reflected rays

Question 16.
If a single ray Is incident on a plane mirror, then how many reflected ray will you observe?
(a) Two
(b) Zero
(c) One
(d) Infinite
Answer:
(c) One

Light Shadows and Reflections Class 7 Assertion-Reason Type Questions

I. The following questions consist of two statements Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Question 1.
Assertion (A) Light is not visible through a bent rubber pipe.
Reason (R) Light travels in a straight path.
Answer:
(a) Both A and R are true and R is the correct explanation of A.

Question 2.
Assertion (A) A plane mirror forms a virtual and erect image.
Reason (R) The size of image is diminished than the size of object in plane mirror.
Answer:
(c) A is true but R is false.

Question 3.
Assertion (A) A shadow is always formed on the same side as the light source.
Reason (R) Light travels in a straight path.
Answer:
(d) A is false but R is true.

Question 4.
Assertion (A) A kaleidoscope produces multiple beautiful patterns.
Reason (R) It uses mirrors placed at specific angles to reflect light multiple times.
Answer:
(a) Both A and R are true and R is the correct explanation of A.

Question 5.
Assertion (A) Kaleidoscopes are used in satellite imaging.
Reason (R) Kaleidoscopes work on the principle of multiple reflections.
Answer:
(d) A is false but R is true.

II. The following questions consist of two statements
Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Question 1.
Assertion (A) Shadows are always formed on the opposite side of the light source.
Reason (R) Light travels in a straight line.
Answer:
(a) Both A and R are true and R is the correct explanation of A.

Question 2.
Assertion (A) An Image formed by a plane mirror is laterally inverted.
Reason (R) Plane mirrors reflect light at irregular angles.
Answer:
(c) A is true but R is false.

Light Shadows and Reflections Class 7 Fill in the blanks

Question 1.
Changing of left side of an object to right side of image is called ______
Answer:
Lateral inversion

Question 2.
Transparent materials do not form a shadow because they allow light to ______ through them.
Answer:
Pass

Question 3.
A ______ is formed on a screen when an opaque object blocks the path of light.
Answer:
Shadow

Question 4.
A pinhole camera forms an image that is inverted and ______ in nature.
Answer:
Real

Question 5.
A ______ is an optical instrument that helps to see objects that are not in the direct line of sight.
Answer:
Periscope

Question 6.
A periscope works on the principle of ______ of light.
Answer:
Reflection

Question 7.
A wooden door is an example of an ______ object because it does not allow light to pass through it.
Answer:
opaque

Question 8.
The image formed by ______ mirror is always virtual and of same size.
Answer:
plane

Question 9.
A kaleidoscope forms beautiful patterns due to repeated reflection by ______ mirrors placed inside a tube.
Answer:
inclined

Light Shadows and Reflections Class 7 True or False

Question 1.
A non-luminous object can be seen only when it reflects light from a luminous source.
Answer:
True

Question 2.
An object can be seen only if it emits light.
Answer:
False

Question 3.
Light does not change its direction when it strikes a smooth surface like a mirror.
Answer:
False

Question 4.
In a plane mirror, the distance of the object from the mirror is equal to the distance of the image from the mirror.
Answer:
True

Question 5.
A shadow is formed because a non-luminous object emit light.
Answer:
False

Question 6.
Clear glass is called a translucent material as it allows most of the light to pass directly through it.
Answer:
False

Question 7.
Shadows are always coloured and show the details of the object.
Answer:
False

Question 8.
Periscope works on the muftiple reflections by plane mirror.
Answer:
True

Light Shadows and Reflections Class 7 Case Based Questions

Question 1.
Ayesha keeps a toy in front of a plane mirror, then she looks at the mirror to see the image of the toy.

(i) At which point will the image of the toy be formed in the mirror?
(a) Point 1
(b) Point 2
(c) Point 3
(d) Point 4
Answer:
(a) Point 1

(ii) What type of image is formed in the mirror?
(a) Real and upright
(b) Virtual and upright
(c) Real and upside down
(d) Virtual and upside down
Answer:
(b) Virtual and upright

Question 2.
The diagram shows how an object is seen through a periscope, x and y are two angles on the path of the light ray.

(i) Which condition is required for the periscope to work properly?
Is the statement true? Yes or No
(a) Angle x should be equal to angle y. Yes/No
Answer:
Yes

(b) Object to be viewed should be Yes/No within 5 m of the periscope.
Answer:
No

(ii) How many times is a light ray reflected in the periscope ?
(a) Once
(b) Twice
(c) Thrice
(d) Four times
Answer:
(b) Twice

Light Shadows and Reflections Class 7 Match the following

Question 1.
Match the Column I with Column II.

Column I	Column II
(a) Plane mirror	(i) Multiple reflections create symmetrical patterns.
(b) Pinhole camera	(ii) Uses mirror to see over obstacles.
(c) Periscope	(iii) Captures real, inverted images on a screen
(d) Kaleidoscope	(iv) Produces virtual, laterally inverted images

Answer:

Column I	Column II
(a) Plane mirror	(iv) Produces virtual, laterally inverted images
(b) Pinhole camera	(iii) Captures real, inverted images on a screen
(c) Periscope	(ii) Uses mirror to see over obstacles.
(d) Kaleidoscope	(i) Multiple reflections create symmetrical patterns.