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
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.
Q7
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.
Q8
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]. Our image in a plane mirror is an example of virtual image.
[B]. The image which cannot be obtained on a screen is called a virtual image.
[C]. It is not possible to obtain a virtual image on the screen because light rays actually do not pass through it.
[D]. None of the above.
Q9
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.
Q10
In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?
[A]. Convex mirror are used as rear-view mirrors or side view mirrors in vehicles.
[B]. For very distant objects, a convex lens produces a real and inverted image which is much smaller than the object.
[C]. And when an object is brought very close to a convex lens, then a virtual and erect image is formed which is larger than the object.
[D]. All 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
Which of the following statement is or are correct?
[A]. A lens is a piece of transparent glass bound by two spherical surfaces.
[B]. Mirrors are not transparent, so light rays cannot pass through mirror.
[C]. The lens which is thicker in the middle than at the edges, is called a convex lens.
[D]. All the above
Q13
The image of an object formed by a plane mirror is:
[A]. Virtual
[B]. Real
[C]. Diminished
[D]. Upside-down
Q14
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.
Q15
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.
Q16
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size, whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively:
[A]. Plane mirror and concave mirror
[B]. Concave mirror and convex mirror
[C]. Plane mirror and convex mirror
[D]. Convex mirror and plane mirror
Q17
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
Q18
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
Q19
Consider the following statements and choose the incorrect one:
[A]. A concave mirror is also known as a diverging mirror
[B]. A convex mirror is also known as diverging mirror also.
[C]. The image of sun formed by concave mirror is real.
[D]. The formation of images in a convex lens is very similar to the formation of images in a concave mirror.
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
You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from:
[A]. Both concave lens and convex lens
[B]. Both concave mirror and convex mirror
[C]. Both concave mirror and convex lens
[D]. Both convex mirror and concave lens
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