Class 7 Science Chapter 15 MCQ (Multiple Choice Questions) of Light with answers and explanation updated for academic session 2022-2023. These MCQ objective questions cover the entire topics of the chapter 15 of class 7 science. After reading NCERT Textbooks once or twice, take help from important questions and MCQ online tests to be confident in the concepts of chapter. Explanation of each answer is also given so that student can understand properly.
Class 7 Science Chapter 15 MCQ for 2022-2023
| Class: 7 | Science |
| Chapter: 15 | Light |
| Contents: | MCQ Online Tests with Answers |
MCQ Tests with Answers for Class 7 Science Chapter 15
Q1
You are provided with a concave mirror, a convex mirror, a concave lens and convex lens. To obtain an enlarged image of an object, you can use either:
[A]. Concave mirror or convex mirror
[B]. Concave mirror or convex lens
[C]. Concave mirror or concave lens
[D]. Concave lens or convex lens
Q2
If an object is placed at a distance of 0.5 meter in front of a plane mirror, the distance between the object and the image formed by the mirror will be:
[A]. 2 m
[B]. 1 m
[C]. 0.5 m
[D]. 0.25 m
Q3
A virtual image larger than the object can be produced by a:
[A]. Concave lens
[B]. Concave mirror
[C]. Convex mirror
[D]. Plane mirror
Q4
A concave mirror cannot be used as:
[A]. A magnifying mirror
[B]. A torch reflector
[C]. A dentist’s mirror
[D]. A rear view mirror
Q5
Which of the following statement is or are correct?
[A]. Light is a form of energy.
[B]. If we shine a torch on a dark night, we will see that the beam of light produced by torch travels straight into darkness.
[C]. If we looked at a lighted candle through a straight pipe with one eye we can see the light of candle flame.
[D]. All the above
Q6
Read the following sentences carefully, and choose the incorrect one:
[A]. The process of sending back the rays of light which fall on the surface of an object is called reflection of light.
[B]. The ray of light which falls on an object is called incident ray.
[C]. And the ray of light which is sent back by an object is called reflected ray.
[D]. The objects having polished, shining surfaces reflect less light than objects having unpolished dull surfaces.
Q7
Priya is writing some statements, choose the incorrect statement and help her:
[A]. The smooth surface pf still water can also act as a mirror.
[B]. A shining silvered mirror reflects back almost all the light which falls on it.
[C]. We can see the objects around us because they reflect light received from a non-luminous object.
[D]. Most of the objects around us have unpolished and dull surfaces due to which they reflect only a small amount of light falling on them.
Q8
Bikash is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?
[A]. What we see in the mirror is actually a reflection of our face and it is called the image of our face.
[B]. We can see the image of our face in the mirror because the smooth and shiny surface of mirror produces regular reflection of light.
[C]. We cannot see the image of our face in the sheet of paper because the rough and dull surface of paper produces irregular reflection of light.
[D]. The image which can be obtained on a screen is called virtual image which we can see in cinema screen.
Q9
Badal appeared in class test but he confused to know the correct statement. Would you help him to know that?
[A]. Concave mirror and convex mirror are called spherical mirrors
[B]. When the parallel rays of light are getting closer together after reflection, we say that the rays of light are converging.
[C]. When the parallel rays of light are spread out after reflection, we say that the rays of light are diverging.
[D]. All the above
Q10
Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:
[A]. The nature and size of the image formed by a concave mirror depends on the distance of the object from the concave mirror.
[B]. The focus of a concave mirror is a point in front of the mirror at which parallel rays of light converge after reflection.
[C]. The focus of a convex mirror is a point behind the mirror from which the parallel rays of light falling on convex mirror appear to diverge after reflection.
[D]. None of the above.
Q11
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. Plane mirror is used as a looking glass.
[B]. Doctors use concave mirror for examining eyes, nose etc.
[C]. Convex mirror is used as a side view mirror of vehicles.
[D]. Concave lens is used as magnifying glass in microscope, telescope etc.
Q12
The image of an object formed by a plane mirror is:
[A]. Virtual
[B]. Real
[C]. Diminished
[D]. Upside-down
Q13
Read the following sentences carefully, and choose the incorrect one:
[A]. Concave lenses are used in making spectacles.
[B]. Concave lenses are used in making certain kinds of telescopes.
[C]. Concave lenses are used in the “peep-holes” in the door of rooms.
[D]. None of the above.
Q14
Bikash is doing his homework which is given by his teacher. Would you help him to choose the correct sentences?
[A]. An object can be seen only if it emits light.
[B]. A convex lens always produces a real image.
[C]. A concave lens can be used to produce an enlarged and erect image.
[D]. The sides of an object and its image formed by a concave mirror are always interchanged.
Q15
Which of the following can be used to form a real image?
[A]. Only concave mirror
[B]. Only plane mirror
[C]. Only convex mirror
[D]. Both concave and convex mirror
Q16
A rainbow can be seen in the sky
[A]. When the sun is in front of you
[B]. When the sun is behind you
[C]. When the sun is overhead
[D]. Only at time of sunrise
Q17
An erect and enlarged image can be formed by
[A]. Only a convex mirror
[B]. Only a concave mirror
[C]. Only a plane mirror
[D]. Both convex and concave mirrors
Q18
In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?
[A]. Newton discovered by his experiment with glass prism that white light consists of a mixture of seven colors.
[B]. The splitting up of white light into seven colors on passing through a transparent medium like a glass prism is called dispersion of light.
[C]. An object is placed at a large distance or it is close to the concave lens, a concave lens always forms an image which is virtual.
[D]. None of the above.
Q19
In a science quiz competition, Payel are asked a question where she had to choose the statement which was/were incorrect?
[A]. The rainbow is an arc of seven colors seen in the sky.
[B]. The rainbow is produced by the dispersion of sunlight by tiny raindrops suspended in the atmosphere.
[C]. The formation of rainbow having seven colors shows that white sunlight consists of seven colors.
[D]. None of the above.
Q20
Priya is writing some statements, choose the incorrect statement and help her:
[A]. A spherical mirror is that mirror whose reflecting surface is the part of a hollow sphere of glass.
[B]. A concave mirror is that spherical mirror in which the reflection of light takes place at the concave surface.
[C]. A convex mirror is that spherical mirror in which the reflection of light takes place at the convex surface.
[D]. A shining steel spoon represents both, a concave mirror, convex mirror and concave lens.
Q21
Payel is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:
[A]. The image formed in a plane mirror is erect or upright.
[B]. Image formed in a plane mirror is at the same distance behind the mirror as the object is in front of the mirror.
[C]. If a person is standing at a distance of 4 meter from a plane mirror then his image will also be formed at a distance of 4 meter behind the mirror.
[D]. None of the above.
Q22
Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:
[A]. The image formed in a plane mirror is virtual.
[B]. The image in a plane mirror is of some little size as the object.
[C]. The image formed in a plane mirror cannot be received on the screen.
[D]. Place a lighted candle in front of a plane mirror, it appears candle is placed behind the mirror.
Q23
When an object is kept at any distance in front of a concave lens, the image formed is always:
[A]. Virtual, erect and magnified
[B]. Virtual, inverted and diminished
[C]. Virtual, erect and diminished
[D]. Virtual, erect and same size as object
Q24
The image formed by a plane mirror is:
[A]. Virtual, behind the mirror and enlarged
[B]. Virtual, behind the mirror and of the same size as the object
[C]. Real, at the surface of the mirror and enlarged
[D]. Real, behind the mirror and of the same size as the object
Q25
Which of the following always diverge light rays?
[A]. Convex mirror and plane mirror
[B]. Concave mirror and convex lens
[C]. Concave lens and concave mirror
[D]. Concave lens and convex mirror
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