CBSE Questions for Class 7 Physics Light Quiz 4 - MCQExams.com

A plane mirror produces a magnification of:
  • Zero
  • $$-1$$
  • $$+1$$
  • Between $$0$$ and $$+1$$
Real Image is always erect. 
Is the above statement True or False?
  • True
  • False
What kind of image is obtained always for concave lens?
  • Virtual, Erect and Diminished
  • Real, Erect and Large
  • Real, Erect and Diminished
  • All of these
Image formed by a plane mirror is :
  • Virtual, behind the mirror and enlarged 
  • Virtual, behind the mirror and of the same size as the object
  • Real at the surface of the mirror and enlarged
  • Real, behind the mirror and of the same size as the object
When the Newton's disc is rotated what happens
  • The colours fade to white
  • The colours fade to black
  • The colours fade to red
  • The colours fade to blue
What is a virtual image?
  • The image that cannot be caught on a screen
  • The image that can be caught on a screen
  • The image that cannot be converged on a screen
  • None
What does Newton's colour disc possess?
  • 7 segments in rainbow colours
  • 5 segments in rainbow colours
  • 4 segments in rainbow colours
  • 9 segments in rainbow colours
An ideal mirror:
  • Absorbs all the amount of light incident on it
  • Refracts all the light
  • Reflects all the light
  • None of the above
What will be the condition of image when you stand in front of a plane flat mirror and look at yourself and you raise your right hand?
  • Erect and enlarged
  • Erect and reduced
  • Erect and reversed
  • Inverted and reversed
  • Inverted and reduced
When the distance between the object and the plane mirror increases.
  • The image remains same
  • The size of the image will become less than the size of the object
  • The distance between the image and the plane mirror increases
  • The distance between the image and the plane mirror decreases
In the case of a plane mirror, the mirror distance of the image is equal to the distance of the object.
  • True
  • False
The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ___________.
  • Reflection
  • Refraction
  • Dispersion
  • None
Complete the following statement. A plane mirror will produce a virtual image:
  • when the object's distance is greater than the image's distance.
  • when the object's distance is less than the image's distance.
  • when the object is on the principal axis of the minor.
  • when the rays converge at the focal point of the mirror.
  • at all distances, from the mirror.
In lateral inversion
  • Right side of the object will be right side of the image
  • Left side of the object will be left side of the image
  • Upside of the object will be down side of the object
  • Right side of the object will be left side of the image
In above figure, a candle is placed in front of the plane mirror. Points A, B, C, D and E are marked as shown in the figure. Find out the possible point where image is formed.
486542.png
  • A
  • B
  • C
  • D
  • E
Which of the following forms a virtual and erect image of same size for all positions of the object?
  • Convex lens
  • Plane mirror
  • Convex mirror
  • Concave mirror
An object of $$10 cm$$ is placed in front of a plane mirror. The height of image will be ....... .
  • $$5 cm$$
  • $$15 cm$$
  • $$20 cm$$
  • $$10 cm$$
Riya and Priya were sitting around a round table. They noticed that they could see their own and each other's image onto the table top. Then table top is made of
  • Unpolished wood, covered with white cloth
  • Polished glass of red colour
  • Glass covered with cellophane paper
  • Smoked glass covered with green colour cloth.
Which statement is wrong from the following for the reflection by plane mirror?
  • The size of image is same as size of object
  • Object distance and image distance is same
  • A plane mirror forms virtual and erect image
  • Image of the object in not laterally inverted
Reflection is
  • Bending of ray of light.
  • Bouncing back of ray of light.
  • Light travelling in a straight line.
  • None of these.
A plane mirror reflects, a pencil of light to form a real image. Then the pencil of light incident on the mirror is 
  • Parallel
  • Convergent
  • Divergent
  • None of these
  • Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  • Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
  • Assertion is correct but Reason is incorrect
  • Assertion is correct but Reason is incorrect
At an instant a watch shows time $$3:25$$. When seen through a mirror, time appeared will be:
  • $$8:35$$
  • $$9:35$$
  • $$7:35$$
  • $$8:25$$
A plane mirror:
(i) can form real image of a real object
(ii) neither converges not diverges the rays
(iii) cannot form real image of a real object
Choose the correct option or options.
  • (i) is correct
  • (i) and (ii) are correct
  • (ii) and (iii) are correct
  • None of the above
A diminished virtual image can be formed only in:-
  • plane mirror
  • A concave mirror
  • A convex mirror
  • Concave-parabolic mirror.
Select the correct alternative:
The property due to which a light ray striking a surface and returned back into the same medium is called  
  • refraction
  • reflex action
  • reflection
  • regression
Mirror used as rear view mirror is
  • Plane
  • Convex
  • Concave
  • Either convex or concave
When a convergent beam of light is incident on a plane mirror, the image formed is
  • Upright and real
  • Upright and virtual
  • Inverted and virtual
  • Inverted and real
Which of the following can produce a virtual image for any position of the object?
  • Plane mirror
  • Concave mirror
  • Convex lens
  • All of the above

The image formed by a plane mirror is _______ the object.


73566_49c5561bb1ff48cd807a3a05d33b4ce7.png
  • smaller than
  • bigger than
  • of the same size as
  • cannot be determined
0:0:1


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