Textbook Solutions: Light and the Formation of Shadows | General Science Class 6 (Maharashtra Board) PDF Download

 Page 1


Chapter 14: Light and the Formation of Shadows 
 
 
EXERCISE [PAGE 104] 
Exercise | Q 1.1 | Page 104 
Choose an appropriate word and fill in the blank. 
A _______ is a natural source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
A star is a natural source of light. 
Exercise | Q 1.2 | Page 104 
Choose an appropriate word and fill in the blank. 
A ______ is an artificial source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
 A candle is an artificial source of light. 
Exercise | Q 1.3 | Page 104 
Choose an appropriate word and fill in the blank. 
When light passes through a prism, it gets separated into _______ colours. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When light passes through a prism, it gets separated into seven colours. 
Exercise | Q 1.4 | Page 104 
Choose an appropriate word and fill in the blank. 
The image obtained in the pinhole camera is _______. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
The image obtained in the pinhole camera is inverted. 
Exercise | Q 1.5 | Page 104 
Choose an appropriate word and fill in the blank. 
A shadow is formed when an _______ object comes in the way of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
Page 2


Chapter 14: Light and the Formation of Shadows 
 
 
EXERCISE [PAGE 104] 
Exercise | Q 1.1 | Page 104 
Choose an appropriate word and fill in the blank. 
A _______ is a natural source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
A star is a natural source of light. 
Exercise | Q 1.2 | Page 104 
Choose an appropriate word and fill in the blank. 
A ______ is an artificial source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
 A candle is an artificial source of light. 
Exercise | Q 1.3 | Page 104 
Choose an appropriate word and fill in the blank. 
When light passes through a prism, it gets separated into _______ colours. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When light passes through a prism, it gets separated into seven colours. 
Exercise | Q 1.4 | Page 104 
Choose an appropriate word and fill in the blank. 
The image obtained in the pinhole camera is _______. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
The image obtained in the pinhole camera is inverted. 
Exercise | Q 1.5 | Page 104 
Choose an appropriate word and fill in the blank. 
A shadow is formed when an _______ object comes in the way of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
SOLUTION 
A shadow is formed when an opaque object comes in the way of light. 
Exercise | Q 1.6 | Page 104 
Choose an appropriate word and fill in the blanks. 
When a ______ object comes in the way of light, light passes ________ it. 
(options: seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When a transparent object comes in the way of light, light passes through it. 
Exercise | Q 2 | Page 104 
Write whether of the following objects are luminous or non-luminous. 
 
Object Luminous/Non-luminous 
A book   
A burning candle   
A wax cloth   
A pencil   
A pen   
A light bulb   
A tyre   
A torch   
 
SOLUTION 
 
Object Luminous/Non-luminous 
A book Non-luminous 
A burning candle Luminous 
A wax cloth Non-luminous 
A pencil Non-luminous 
A pen Non-luminous 
A light bulb Luminous 
A tyre Non-luminous 
A torch Luminous 
 
 
Page 3


Chapter 14: Light and the Formation of Shadows 
 
 
EXERCISE [PAGE 104] 
Exercise | Q 1.1 | Page 104 
Choose an appropriate word and fill in the blank. 
A _______ is a natural source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
A star is a natural source of light. 
Exercise | Q 1.2 | Page 104 
Choose an appropriate word and fill in the blank. 
A ______ is an artificial source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
 A candle is an artificial source of light. 
Exercise | Q 1.3 | Page 104 
Choose an appropriate word and fill in the blank. 
When light passes through a prism, it gets separated into _______ colours. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When light passes through a prism, it gets separated into seven colours. 
Exercise | Q 1.4 | Page 104 
Choose an appropriate word and fill in the blank. 
The image obtained in the pinhole camera is _______. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
The image obtained in the pinhole camera is inverted. 
Exercise | Q 1.5 | Page 104 
Choose an appropriate word and fill in the blank. 
A shadow is formed when an _______ object comes in the way of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
SOLUTION 
A shadow is formed when an opaque object comes in the way of light. 
Exercise | Q 1.6 | Page 104 
Choose an appropriate word and fill in the blanks. 
When a ______ object comes in the way of light, light passes ________ it. 
(options: seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When a transparent object comes in the way of light, light passes through it. 
Exercise | Q 2 | Page 104 
Write whether of the following objects are luminous or non-luminous. 
 
Object Luminous/Non-luminous 
A book   
A burning candle   
A wax cloth   
A pencil   
A pen   
A light bulb   
A tyre   
A torch   
 
SOLUTION 
 
Object Luminous/Non-luminous 
A book Non-luminous 
A burning candle Luminous 
A wax cloth Non-luminous 
A pencil Non-luminous 
A pen Non-luminous 
A light bulb Luminous 
A tyre Non-luminous 
A torch Luminous 
 
 
Exercise | Q 3 | Page 104 
Match the following. 
 
Group A Group B 
(a) Mirror (1) Non-luminous 
(b) Firefly (2) Inverted image 
(c) Pinhole camera (3) Reflection 
(d) Moon (4) Luminous 
 
SOLUTION 
 
Group A Group B 
(a) Mirror (3) Reflection 
(b) Firefly (4) Luminous 
(c) Pinhole camera (2) Inverted image 
(d) Moon (1) Non-luminous 
 
Exercise | Q 4.1 | Page 104 
Write the answer to the following. 
What things are necessary for the formation of a shadow? 
 
SOLUTION 
The things necessary for the formation of a shadow are: 
• A source of light 
• An opaque object whose shadow has to be formed 
• A screen on which shadow is to be formed 
 
Exercise | Q 4.2 | Page 104 
Write the answer to the following. 
When can an object be seen? 
 
SOLUTION 
An object is seen when the light rays reflected from its surface reaches our eyes. 
Exercise | Q 4.3 | Page 104 
Write the answer to the following. 
Page 4


Chapter 14: Light and the Formation of Shadows 
 
 
EXERCISE [PAGE 104] 
Exercise | Q 1.1 | Page 104 
Choose an appropriate word and fill in the blank. 
A _______ is a natural source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
A star is a natural source of light. 
Exercise | Q 1.2 | Page 104 
Choose an appropriate word and fill in the blank. 
A ______ is an artificial source of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
 A candle is an artificial source of light. 
Exercise | Q 1.3 | Page 104 
Choose an appropriate word and fill in the blank. 
When light passes through a prism, it gets separated into _______ colours. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When light passes through a prism, it gets separated into seven colours. 
Exercise | Q 1.4 | Page 104 
Choose an appropriate word and fill in the blank. 
The image obtained in the pinhole camera is _______. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
The image obtained in the pinhole camera is inverted. 
Exercise | Q 1.5 | Page 104 
Choose an appropriate word and fill in the blank. 
A shadow is formed when an _______ object comes in the way of light. 
(options : seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
SOLUTION 
A shadow is formed when an opaque object comes in the way of light. 
Exercise | Q 1.6 | Page 104 
Choose an appropriate word and fill in the blanks. 
When a ______ object comes in the way of light, light passes ________ it. 
(options: seven, star, through, transparent, opaque, colors, shape, erect, inverted, 
luminous, candle) 
 
SOLUTION 
When a transparent object comes in the way of light, light passes through it. 
Exercise | Q 2 | Page 104 
Write whether of the following objects are luminous or non-luminous. 
 
Object Luminous/Non-luminous 
A book   
A burning candle   
A wax cloth   
A pencil   
A pen   
A light bulb   
A tyre   
A torch   
 
SOLUTION 
 
Object Luminous/Non-luminous 
A book Non-luminous 
A burning candle Luminous 
A wax cloth Non-luminous 
A pencil Non-luminous 
A pen Non-luminous 
A light bulb Luminous 
A tyre Non-luminous 
A torch Luminous 
 
 
Exercise | Q 3 | Page 104 
Match the following. 
 
Group A Group B 
(a) Mirror (1) Non-luminous 
(b) Firefly (2) Inverted image 
(c) Pinhole camera (3) Reflection 
(d) Moon (4) Luminous 
 
SOLUTION 
 
Group A Group B 
(a) Mirror (3) Reflection 
(b) Firefly (4) Luminous 
(c) Pinhole camera (2) Inverted image 
(d) Moon (1) Non-luminous 
 
Exercise | Q 4.1 | Page 104 
Write the answer to the following. 
What things are necessary for the formation of a shadow? 
 
SOLUTION 
The things necessary for the formation of a shadow are: 
• A source of light 
• An opaque object whose shadow has to be formed 
• A screen on which shadow is to be formed 
 
Exercise | Q 4.2 | Page 104 
Write the answer to the following. 
When can an object be seen? 
 
SOLUTION 
An object is seen when the light rays reflected from its surface reaches our eyes. 
Exercise | Q 4.3 | Page 104 
Write the answer to the following. 
What is a shadow? 
 
SOLUTION 
Shadow is a dark patch obtained on a screen where the light from a light source is 
blocked by an opaque object.