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NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows and Reflections

Question 1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects.

NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows and Reflections

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 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:-

ObjectOpaqueTransparentTranslucentLuminousNon-luminous
AirYesYes
WaterYesYes
Piece of rockYesYes
Sheet of aluminiumYesYes
MirrorYesYes
Wooden boardYesYes
Sheet of polytheneYesYes
CDYesYes
SmokeYesYes
Sheet of plane glassYesYes
FogYesYes
Piece of red hot ironYesYes
UmbrellaYesYes
Lighted fluorescent tubeYesYes
WallYesYes
Sheet of carbon paperYesYes
Flame of a gas burnerYesYes
Sheet of cardboardYesYes
Lighted torchYesYes
Sheet of cellophaneYesYes
Wire meshYesYes
Kerosene stoveYesYes
SunYesYes
FireflyYesYes
MoonYesYes

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:- Yes, a cyclinder or a circular disc when held in one way give a circular shadow and a rectangular shadow if held in another way.

NCERT Solutions for Class 6 Science Chapter 11 Light, Shadows and Reflections Question Answer

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:- In a completely dark room no image will be formed as there will be no reflection of light.