Answer:The maximum kinetic energy KEe of ejected electrons (photoelectrons) is given by KEe=hf−BE KE e = h f − BE , where hf is the photon energy and BE is the binding energy (or work function) of the electron to the particular material.
Explanation:
Conductors are required to transmit electricity to various parts of the home. These take the form of the copper in the wires. Insulators separate various electrical conduits from each other and external bodies, as well as protecting the conductors from the elements. These take the form of the plastic sheathing over the wires.
Answer:
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Answer:
2.775 s.
Explanation:
<em>The half-life time for a first order reaction = 0.693 / k.</em>
Where, k is the rate constant of the reaction.
∴ The half-life time = <em>0.693 / k</em> = (0.693) / (0.271 s⁻¹) = 2.775 s.
