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Let $G$ be a simple graph of order $n$. The energy $E(G)$ of the graph $G$ isthe sum of the absolute values of the eigenvalues of $G$. The Randi\'{c} matrixof $G$, denoted by $R(G)$, is defined as the $n\times n$ matrix whose$(i,j)$-entry is $(d_id_j)^{\frac{-1}{2}}$ if $v_i$ and $v_j$ are adjacent and$0$ for another cases. The Randi\'{c} energy $RE$ of $G$ is the sum of absolutevalues of the eigenvalues of $R(G)$. In this paper we compute the energy andRandi\'{c} energy for certain graphs. Also we propose a conjecture on Randi\'cenergy.

More on energy and Randic energy of specific graphs