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Ncert Solutions for Class 6 Science Light Shadow and Reflection


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In this page we have Ncert Solutions for Class 6 Science Light Shadow and Reflection. Hope you like them and do not forget to like , social share and comment at the end of the page.

Question 1

Rearrange the boxes given below to make a sentence that helps us understand opaque objects. 

Answer

OPAQUE OBJECTS MAKE SHADOWS

Question 2

Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:
Air, water, a piece of rock, a sheet of aluminum, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.

Answer:

First let us explain the each term

transparent

If we are able to see clearly through an object, it is said to be transparent

translucent

If we are able to see not clearly through an object, it is said to be translucent

opaque

If we cannot see through an object at all, it is an opaque object

 

luminous

A body which emits light by itself

non-luminous

A body which does not emits light by itself

 

Let us create a table to show the properties

        Object                

Transparent
/Translucent
    /Opaque           

Luminous/
Non-luminous

Air, Water

Transparent

Non-luminous

Piece of Rock,
Sheet of Aluminium,
Mirror, Wooden Board,
CD, Umbrella, Wall,
Sheet of Carbon Paper,
Sheet of cardboard,
Moon

Opaque

Non-luminous

A sheet of polythene,
Smoke, Fog, 
Sheet of cellophone,
Wire-mesh,

Translucent

Non-luminous

A piece of Red hot iron,
Light fluorescent tube,
Lighted torch,
Kerosene stove,
Sun, firefly  

Opaque

Luminous

Flame of gas burner

Translucent

Luminous

Question 3

 Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?

Answer:

A cylinder object can cast shadows in two ways. When the top circular view faces the sun, a circular shape shadow is formed. When its horizontal side faces the sun, it casts a rectangular shadow.

Question 4

  In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?

Answer

 To see the reflection, source of light is required We can only see in the presence of light.


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