Match the given columns: Column A Column A Column C 1 . Concave lens (i) Splitting of white light (a) Headlights of automobile 2 . Convex mirror (ii) The bouncing of light from a surface (b) To correct hypermetropia 3 . Reflection (iii) A lens which always forms virtual image (c) To correct myopia 4 . Dispersion (iv) A mirror which always forms diminished image (d) Solar cookers 5 . Concave mirror (v) A polished curved surface which bends inwards (e) Polished furniture 6 . Convex lens (vi) The image is erect and of the same size as the object (f) Rainbow 7 . Plane mirror (vii) Converges a parallel beam of light (g) Rearview mirrors in cars

Column A Column A Column C 1 . Concave lens (iii) A lens which always forms virtual image (c) To correct myopia A concave lens always forms a virtual image used to correct an eye defect called myopia in which defected person is not able to see the distant object clearly. Column A Column A Column C 2 . Convex mirror (iv) A mirror which always forms diminished image (g) Rearview mirrors in cars Convex mirror always forms a diminished image used as a rearview mirror in cars to see objects behind the car. Column A Column A Column C 3 . Reflection (ii) The bouncing of light from a surface (e) Polished furniture Reflection is bouncing of light from a surface to the same medium . The reflection can occur in a polished surface. Column A Column A Column C 4 . Dispersion (i) Splitting of white light (f) Rainbow Dispersion is the phenomenon of splitting of white light into 7 colours when passed through prism like objects as it happens in the rainbow. Column A Column A Column C 5 . Concave mirror (v) A polished curved surface which bends inwards (a) Headlight of automobile Concave mirror is a polished covered surface that bends inwards, used in the headlight of the automobile to focus object. Column A Column A Column C 6 . Convex lens (vii) Converges a parallel beam of light (b) To correct hypermetropia Convex lens converges a parallel beam of light. It is used to correct hypermetropia, an eye defect in which a defected person is not able to see near object clearly. Column A Column A Column C 7 . Plane mirror (vi) The image is erect and of the same size as the object (d) Solar cooker Plane mirror image is erect and of the same size as the object used in the solar cooker to reflect the maximum amount of sunlight . Column A Column A Column C 1 . Concave lens (iii) A lens which always forms virtual image (c) To correct myopia 2 . Convex mirror (iv) A mirror which always forms diminished image (g) Rearview mirrors in cars 3 . Reflection (ii) The bouncing of light from a surface (e) Polished furniture 4 . Dispersion (i) Splitting of white light (f) Rainbow 5 . Concave mirror (v) A polished curved surface which bends inwards (a) Headlight of automobile 6 . Convex lens (vii) Converges a parallel beam of light (b) To correct hypermetropia 7 . Plane mirror (vi) The image is erect and of the same size as the object (d) Solar cooker

E M B I B E

Start Up Science 7>Chapter 14 - Light>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q B

EASY

7th CBSE

IMPORTANT

Earn 100

Give uses of convex mirror and convex lens.

Important Questions on Light

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 14 - Light>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

The torch makes use of_____ for reflector.

(Choose from: concave mirror / convex mirror)

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 14 - Light>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

Newton's disc appears white on rotation because of the _____ (separation/ mixing) of colours.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 14 - Light>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

The image which is larger in size than the object is called _____ image.

(Choose from the following: magnified/diminished)

HARD

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 14 - Light>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

Match the given columns:

	Column A		Column A		Column C
$1 .$	Concave lens	(i)	Splitting of white light	(a)	Headlights of automobile
$2 .$	Convex mirror	(ii)	The bouncing of light from a surface	(b)	To correct hypermetropia
$3 .$	Reflection	(iii)	A lens which always forms virtual image	(c)	To correct myopia
$4 .$	Dispersion	(iv)	A mirror which always forms diminished image	(d)	Solar cookers
$5 .$	Concave mirror	(v)	A polished curved surface which bends inwards	(e)	Polished furniture
$6 .$	Convex lens	(vi)	The image is erect and of the same size as the object	(f)	Rainbow
$7 .$	Plane mirror	(vii)	Converges a parallel beam of light	(g)	Rearview mirrors in cars