Which term describes the number of troughs that pass a point in a given amount of time? a. wave speed b. period c. wavelength d. frequency

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the answers would be

the first one and the second one