CBSE Questions for Class 6 Physics Light Shadows And Reflections Quiz 2 - MCQExams.com

When light is reflected from the a spherical or curved surface: 
  • the laws of reflections are followed
  • the laws of reflections are not followed
  • the laws of reflections may or may not be followed
  • one of  the laws is followed, the other is not
Translucent materials allow ______ amount of light to pass through.
  • entire
  • some
  • very less
  • no
Which type of objects can cast shadows?
  • Transparent objects
  • All types of objects
  • Opaque objects
  • Only heavy objects can cast shadows
Why does the pinhole camera produce an inverted image ?
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  • The light passing through a convex lens produces an inverted image
  • The light passing through a concave lens produces an inverted image
  • The light travelling in a straight line passes through aperture to produce an inverted image
  • Pinhole camera produces an upright image
What kind of lens is used in making a pinhole camera ?
  • Concave lens
  • Convex lens
  • Concavo-convex lens
  • No lens is used
What is the role of aperture in pinhole camera ?
  • Sharpens the image
  • Allows light to enter to form the image
  • Diffracts light passing through it
  • None of these
Which of the following statements is true?
  • The image formed by a pinhole camera is inverted because light travels in a straight line.
  • Light does not change its direction on reflection.
  • As we move the object away from the light source, the shadow of the object becomes smaller.
  • Reflection is possible only from polished surface.
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.
Reflection is
  • Bending of ray of light.
  • Bouncing back of ray of light.
  • Light travelling in a straight line.
  • None of these.
Which of the following is the setup to make a basic pinhole camera ?
  • An enclosed box with a small hole on one of its surface
  • An enclosed box with a small plane mirror on one of its surface
  • An enclosed box with a small concave mirror on one of its surface
  • An enclosed box with a small convex mirror on one of its surface
What acts as a pinhole in the naturally formed pinhole images of sun ?
  • The twigs and branches of trees
  • The trunk of leafless trees
  • The gaps between the leaves
  • The shadow of birds sitting on the trees
Which of the following is not a characteristic of pinhole camera ?
  • It produces an inverted image
  • It works on the principle of rectilinear motion of light
  • It is inexpensive to make
  • The image produced is black and white
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
Wood is an example of an opaque object.
  • True
  • False
State whether the statement is true or false:

You can clearly see through a blue-tinted drinking glass.
  • True
  • False
Shadows are formed because:
  • Opaque bodies allow the light to pass through them
  • Light can bend around the opaque bodies
  • Light rays cannot pass through the opaque bodies
  • Light shows the phenomenon of diffraction around large objects
Transparent objects:
  • Do not allow light to pass through them
  • Allow light to pass through them
  • Allow light to pass through them partially
  • None of these
Light travels in ........ lines.
  • Straight
  • zig zag
  • circular
  • parabolic
Air is not visible because it:
  • is nearly a perfectly transparent substance 
  • neither absorbs nor reflects light 
  • transmits whole of light 
  • follows all of the above
Butter paper is an example for ........ objects.
  • A transparent
  • A translucent
  • An opaque
  • A luminous
  • 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 incorrect but Reason is correct
You can clearly see through opaque objects.
  • True
  • False
Translucent objects possess following quality :
  • Do not allow light to pass through them
  • Allow light to pass through them
  • Allow only a partial amount of light to pass through them
  • Absorb all the light incident on them
Shadow moves with
  • The change in position of the object
  • The change in position of the source of light
  • The change in the distance between the object and the source of light
  • All of the above
The length of the shadow will be longest when the
  • Angle between the source of light and the object is 45
  • Source of light and the object are parallel to each other
  • Source of light and the object are perpendicular to each other
  • Angle between the source of light and the object is 60
Which of the following is a translucent?
  • Ground glass
  • Wood
  • Stone
  • Plastic
Substances that allow light to pass through them are called
  • Transparent
  • Translucent
  • Opaque
  • None of these
Shadow of an object falls in
  • The direction of the source of light
  • The direction opposite to that of the source of light
  • A direction perpendicular to the source of light
  • None of the above
Substances that do not allow light to pass through them are called
  • Transparent
  • Translucent
  • Opaque
  • None of these
Which of the following is an opaque object?
  • Wood
  • Glass
  • Air
  • Vacuum
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