(a) \(0.65\)
\(0.65= 0.65\times 100\%\)
= \(\frac{65\times100}{100}\%\)
= \(65\%\)
(b) \(2.1\)
\(2.1=2.1\times100\%\)
= \(\frac{21\times100}{10}\%\)
= \(210\%\)
(c) \(0.02\)
\(0.02=0.02\times100\%\)
= \(\frac{2\times100}{100}\%\)
= \(2\%\)
(d) \(12.35\)
\(12.35=12.35\times100\%\)
= \(\frac{1235\times100}{100}\%\)
= \(1235\%\)
Convert the given fractional numbers to per cents.
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. |