Answer:
true?
Explanation:
Im positive but not 100% sure wait for someone else to answer and see if they say the same.
Answer:
petroleum and Natural gas are fossil fuels
Explanation:
B if not please comment back .
Answer:
increase
Explanation:
According to Einstein's photoelectric equation; the energy of a photon striking a metal surface is related to the kinetic energy of the ejected photoelectron by the formula;
KE= hf - hfo
Where h is the planks constant, f and fo refer to the frequency of incident photon and the threshold frequency respectively.
Hence, we can clearly see from the foregoing that the kinetic energy of the ejected photoelectron is proportional to the frequency of the incident photon.
Hence, if the frequency of the incident photon is increased, the kinetic energy of the ejected photoelectron increases also.
4 because it’s is the highest one hope it helps
