A piece of wood has dimensions l, b and h. Its relative density is 'd'. It is floating in water such that the side 'h' is vertical. If it is pushed down gently and released, the angular frequency will be
1
\(\sqrt {\frac{g}{{dh}}} \)
2
\(\sqrt {\frac{lbg}{{dh}}} \)
3
\(\sqrt {\frac{dg}{{h}}} \)
4
\(\sqrt {\frac{dg}{{lbh}}} \)