Two circular cylinder of equal volume have their heights in the ratio 1:2. Ratio of their radii is `1:sqrt(2)` (b) `sqrt(2):1` (c) `1:2` (d) `1:4`

Explanation

correct option is (a)`1:sqrt(2)`
let their be `h_1and h_2`
`h_1=x`
`h_2=2x`
now `v_1=v_2`
`pir_1^2h_1=pir_2^2h`
`r_1/r_2=1/sqrt2`