NCERT Class VI Science Solutions: Chapter 11-Light, Shadows and Reflections Part 1

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Question 1:

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

As showing in images is a understand opaque objects.

Understand Opaque Objects

As showing in images is a understand opaque objects.

Answer:

As showing in images is a understand opaque objects.

Understand Opaque Objects (Answer).

As showing in images is a understand opaque objects.

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:

Opaque: A piece of rock, a sheet of aluminium, a mirror, a wooden board, a CD, 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, kerosene stove, sun, firefly, moon.

As showing in Image is a result for the opaque object

Opaque Object

As showing in Image is a result for the opaque object

Transparent: Air, water.

As showing in images is a Transparent

Transparent

As showing in images is a Transparent

Translucent: A sheet of polythene, smoke, a sheet of plane glass, fog, a sheet of cellophane, a wire mesh.

Image result for Translucent object

Translucent Object

Image result for Translucent object

Luminous: A piece of red hot iron, a lighted fluorescent tube, the flame of a gas burner, a lighted torch, sun, firefly.

As showing in Image is a result for luminous objects

Luminous Objects

As showing in Image is a result for luminous objects

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, an umbrella, a wall, a sheet of carbon paper, a sheet of cardboard, a sheet of cellophane, a wire mesh, kerosene stove, moon.

As showing in Image is a result for non luminous objects

Non-Luminous Object

As showing in Image is a result for non luminous objects