NCERT Solutions for Class 6 Science Chapter 11 Light Shadows and Reflections
NCERT solutions for class 6 science chapter 11 light shadows and reflections exercise:
Q1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
Answer: Here is the rearrangement of boxes.
Q2. 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 aluminium, 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: Here are classified objects as opaque, transparent, translucent, luminous and non-luminous.
Opaque |
Transparent |
Translucent |
Luminous |
Non-luminous |
a piece of rock |
Air |
smoke |
a piece of red hot iron |
a piece of rock |
a sheet of aluminium |
Water |
fog |
a lighted fluorescent tube |
smoke |
a mirror |
a sheet of plane glass |
a sheet of cellophane |
the flame of a gas burner |
Air |
a wooden board |
a wire mesh |
a lighted torch |
a sheet of aluminium |
|
a piece of red hot iron |
a sheet of polythene |
kerosene stove |
water |
|
an umbrella |
sun |
fog |
||
a wall |
firefly |
a mirror |
||
a sheet of carbon paper |
a sheet of plane glass |
|||
a sheet of cardboard |
a sheet of cellophane |
|||
moon |
a wooden board |
|||
a CD |
a sheet of polythene |
|||
a wire mesh |
||||
an umbrella |
||||
a wall |
||||
a sheet of carbon paper |
||||
moon |
Q3. 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: Yes, that shape is cylindrical.
Q4 . 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: No, in a completely dark room you cannot see your reflection of yourself in the mirror because there is no light that is going to fall in the mirror due to darkness.
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Reference Books Solutions
- HC Verma Part 1
- HC Verma Part 2
- RD Sharma Class 9
- RD Sharma Class 10
- RS Aggarwal Class 10
- Lakhmir Singh Class 9
- Lakhmir Singh Class 10