CBSE Questions for Class 6 Physics Light Shadows And Reflections Quiz 1 - MCQExams.com

Water is
  • Transparent
  • Translucent
  • Opaque
  • Polymer
In a room lighted by an electric bulb, it is found that the shadow of the ceiling fan hung in the centre is falling on a wall opposite to the door. What can you say about the position of the bulb ?
  • On the wall having the door
  • On the wall facing the door
  • On the wall on your right as you enter the room
  • On the wall on your left as you enter the room
A thin layer of water is transparent but a very thick layer of water is :
  • translucent
  • opaque
  • most transparent
  • completely transparent
Shadows are formed due to:
  • Blockage of light and heat by the opaque objects
  • Transfer of light through any opaque object
  • Blockage of light by the opaque objects
  • Cannot say
The Image formed in a pinhole camera  is real. 
  • True
  • False
Which of the following is a transparent object?
  • Gold
  • Glass
  • Stone
  • Plastic
A substance through which light can pass is called a/an :
  • Light body
  • Transparent body
  • Opaque body
  • Translucent body
The image of our face in a plane mirror is
  • real
  • magnified
  • diminished
  • Same as the size of the object
Which of the following is an example of natural pinhole camera ?
  • Thorns on a stem
  • Pollen grains in flower
  • Holes in a leaf
  • All the above
Identify the instrument from the given image.
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  • Periscope
  • Kaleidoscope
  • Pinhole Camera
  • None of the above
Which of the following is transparent?
  • Stone
  • Wood
  • Plastic
  • Glass
Which of the following describes an object that allows no light to pass through it ? 
  • Transparent
  • Opaque
  • Translucent
  • Diffuse
The phenomenon in which light that strikes a surface is thrown back into the same medium is called -
  • reflection
  • reflex action
  • refraction
  • regression
The phenomenon that leads to the bouncing back of light rays is called-
  • Diffraction
  • Reflection
  • Dispersion
  • Refraction
The term reflection refers to the bending of light rays:
  • when they strike a mirror
  • when they enter a different medium
  • around a sharp edge
  • around the boundary of a narrow aperture
Reflection is the ........ of light off a surface.
  • Bouncing
  • hitting
  • firing 
  • all
Opaque objects:
  • do not transmit most of the light falling on them
  • transmit most of the light falling on them
  • absorb most of the light falling on them
  • are strong and hard
Diamond is :
  • transparent
  • translucent
  • opaque
  • semi-absorbent
State whether true or false.
Shadows, eclipses and images are formed due to the rectilinear propagation of light.
  • True
  • False
Select the odd one out (shadows, eclipses, expansion, images)
  • expansion
  • shadows
  • eclipses
  • images
State whether true or false.
The pin-hole camera demonstrates how light can form images of objects.
  • True
  • False
Light travels in a straight line path. State whether true or false
  • True
  • False
State whether true or false.
A pinhole camera can take pictures of moving objects.
  • True
  • False
________ materials do not allow any light to pass through.
  • Transparent
  • Translucent
  • Opaque
  • Semi absorbent
The bouncing of a beam of light from a polished surface in some other direction is called -
  • refraction
  • reflection
  • dispersion
  • scattering
Pinhole camera is a simple application of :
  • reflection of light
  • rectilinear propagation of light
  • refraction of light
  • scattering of light
An ideal mirror:
  • Absorbs all the amount of light incident on it
  • Refracts all the light
  • Reflects all the light
  • None of the above
Which of the following is not an example of natural pinhole camera ?
  • Slightly separated tree leaves on a dense tree
  • Holes in a plant leaf
  • Bubbles on the surface of garden rocks
  • Soap Bubble in air
Wax is an example of:
  • a transparent object
  • a translucent object
  • an opaque object
  • all of these
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
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