Which of the following statements apply to the photoelectric effect? 1) wave theory accurately describes the photoelectric effect. 2) quantum theory accurately describes the photoelectric effect. 3) the photoelectric effects can be explained in the same way that diffraction and interference are explained. 4) the photoelectric effect offers evidence of the wave nature of light. 5) the photoelectric effect demonstrates that photons are small enough to interact with individual electrons.

correct ans is (2)

The classical model of light depicts diffraction and interference. Quantum theory precisely depicts the photoelectric impact since when Einstein initially proposed the utilization of light quanta to clarify the photoelectric impact. This idea is formalized in the quantum theory of radiation. The photoelectric effect explain, If you  light of sufficiently high energy on to a metal, electrons will be emitted from the metal. Light beneath a specific threshold frequency, regardless of how extreme, won't make any electrons be radiated. Light over the threshold frequency, regardless of whether it's not extremely intense, will dependably motivation electrons to be transmitted.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer