29) True or False. If the threshold frequency of a certain metal is 2.0 X 10^14

Question

29) True or False. If the threshold frequency of a certain metal is 2.0 X 10^14 Hz, light of frequency 1.9 x 10^14 Hz will not be able to dislodge any photoelectrons from this metal. 30) True or False. The maximum kinetic energy of photoelectrons from a metal is equal to the work function of that metal. 31) True or False. A beam of light having frequency greater than the threshold frequency shin on a metal surface. By increasing the frequency of this light, you increase the number of photoelectrons emitted per second from this metal. 32) True or False. A beam of light having frequency greater than the threshold frequency shin on a metal surface. By increasing the intensity of this light, you increase the number of photoelectrons emitted per second from this metal. 33) True or False. Typical photoelectric work functions are in the range of a few joules. 34) True or False. A quantum of blue light carries more energy than a quantum of red light. 35) True or False. When light is absorbed by a metal, the energy of each light quantum is usually given to several adjacent electrons. 36) True or False. According to the Bohr model of the atom, an electron can only jump from high to a low energy state if it emits a photon whose energy is the same as the energy difference between those two states. 37) True or False. The number of electrons in the nucleus is equal to the number of protons. 38) True or False. 14C and 14N both contain 8 neutrons in their nuclei. 39) True or False. All atoms of a given element contain exactly the same number of protons i their nucleus, but they may have different numbers of neutrons.

Explanation / Answer

29) True

30) Flse

31) Flse

32) True

33) False

34) True

35) False

36) True

37) False

38) False

39) True

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