NCERT Solution for class 6 Science Chapter 8 Light Shadows and Reflections provided here will aid you in better understanding of the concepts involved in CBSE Class 6 Syllabus. Detailed answer and explanations provided here will clear your all doubts and on Concepts of Light.
Q.1. Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
Answer:
Q.2. Classify the objects or materials given below as opaque, transparent or translucent and luminous and 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:
Answer:
Opaque : A piece of rock, a sheet of Aluminium, A mirror, Wooden board, CD, Wall, Cardboard, Umbrella, sheet of carbon paper.
Transparent : Air, Water, Sheet of plane glass, Sheet of cellphone, a wire mesh.
Translucent : Sheet of polythene, Smoke, Fog.
Luminous : Red hot iron, Lighted fluorescent tube, Flame of a gas burner, Lighted torch, Kerosene stove, Sun, Firefly.
Non-luminous : Air, water, Rock, Aluminium, Mirror, Wooden board, Polythene, CD, Smoke, Plane glass, Fog, Umbrella, Wall, Carbon Paper, Cardboard, Cellophane, Wire mesh, Moon.
Q.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.
Answer:
In a completely dark room, one cannot see any image in the mirror, because there is no light falling on mirror which can be reflected to show the image