Fig. 4

Plot of (a) concentrations verses measured densities of Ag NPs, rGO and Ag/rGO nanocomposites and (b) concentrations verses measured ultrasonic velocities of Ag NPs, rGO and Ag/rGO nanocomposites.

Plot of (a) concentrations verses measured densities of Ag NPs, rGO and Ag/rGO nanocomposites and (b) concentrations verses measured ultrasonic velocities of Ag NPs, rGO and Ag/rGO nanocomposites.