Match the items given in column I with one or more items of column II: Column I Column II (i) A plane mirror (a) Used as a magnifying glass (ii) A convex mirror (b) Can form image of objects spread over a large area. (iii) A convex lens (c) Used by dentists to see enlarged images of teeth (iv) A concave mirror (d) The image is always inverted and magnified (v) A concave lens (e) The image is erect and of the same size as object (f) The image is erect and smaller in size than the object

(i) A plane mirror - (e) The image is erect and of the same size as the object. The plane mirror always forms an image of virtual, erect and of the same size as the object. (ii) A convex mirror - (b) Can form image of objects spread over a large area. A convex mirror forms small image of an object so it can form image of objects spread over a large area. The images formed by this mirror are virtual and erect. (iii) A convex lens - (a) Used as a magnifying glass, (d) The image is always inverted and magnified A convex lens can be used to see very small writing, the image formed is inverted and large in size. Convex lens can form both real and virtual images. (iv) A concave mirror - (c) Used by dentists to see enlarged images of teeth Dentist use concave mirror to see large images of our teeth. This mirror also known as converging mirror. (v) A concave lens - (f) The image is erect and smaller in size than the object A concave lens forms image of an object which is smaller in size and right-side up. This lens is also known as diverging lens. Column I Column II (i) A plane mirror (e) The image is erect and of the same size as object (ii) A convex mirror (b) Can form image of objects spread over a large area. (iii) A convex lens (a) Used as a magnifying glass, (d) The image is always inverted and magnified (iv) A concave mirror (c) Used by dentists to see enlarged images of teeth (v) A concave lens (f) The image is erect and smaller in size than the object

E M B I B E

AWARENESS SCIENCE for Seventh Class>Chapter 15 - Light>Short Answer Type Questions>Q 32

EASY

7th CBSE

IMPORTANT

Earn 100

State the difference between real and virtual images. What type of image (real or virtual) is formed in the still water of a lake?

Important Questions on Light

EASY

7th CBSE

IMPORTANT

AWARENESS SCIENCE for Seventh Class>Chapter 15 - Light>Short Answer Type Questions>Q 33

What is the difference in the shape of a concave mirror and a convex mirror? Give one use of concave mirror and one of a convex mirror.

EASY

7th CBSE

IMPORTANT

AWARENESS SCIENCE for Seventh Class>Chapter 15 - Light>Short Answer Type Questions>Q 34

State two differences between a convex lens and a concave lens. Give one use of the convex lens and one of a concave lens.

EASY

7th CBSE

IMPORTANT

AWARENESS SCIENCE for Seventh Class>Chapter 15 - Light>Short Answer Type Questions>Q 35

Match the items given in column I with one or more items of column II:

Column I	Column II
(i) A plane mirror	(a) Used as a magnifying glass
(ii) A convex mirror	(b) Can form image of objects spread over a large area.
(iii) A convex lens	(c) Used by dentists to see enlarged images of teeth
(iv) A concave mirror	(d) The image is always inverted and magnified
(v) A concave lens	(e) The image is erect and of the same size as object
	(f) The image is erect and smaller in size than the object