Length = 5.7 cm
Breadth = 3 cm
Area = Length x Breadth
= 5.7 x 3 = 17.1 cm2
Types | Week I | Week II | Week III | Week IV | Total |
Type A | 2650 | 1640 | - | - | 8820 |
Type B | - | 1520 | 1650 | 1730 | - |
Type C | 3240 | - | - | 2550 | 8750 |
Type D | 2960 | 1220 | - | - | 8270 |
Total | 10730 | - | 7530 | - | - |
Match the items given in Column I with one or more items of Column II.
Column I | Column II |
(a) A plane mirror | (i) Used as a magnifying glass. |
(b) A convex mirror | (ii) Can form image of objects spread over a large area. |
(c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
(d) A concave mirror | (iv) The image is always inverted and magnified. |
(e) A concave lens | (v) The image is erect and of the same size as the object. |
- | (vi) The image is erect and smaller in size than the object. |