(i) Here, 1 part out of 4 equal parts are shaded which represents the fraction \(\frac{1}{4}\)
\(\frac{1}{4}= \frac{1}{4}\times100\%\)
= \(25\%\)
(ii) Here, 3 parts out of 5 equal parts are shaded which represents the fraction \(\frac{3}{5}\)
\(\frac{3}{5}=\frac{3}{5}\times100\%\)
= \(60\%\)
(iii) Here, 3 parts out of 8 equal parts are shaded which represents the fraction \(\frac{3}{8}\)
\(\frac{3}{8}=\frac{3}{8}\times100\%\)
= \(\frac{300}{8}\%\)
= \(37.5\%\)
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. |