Multiple Choice
A monochromatic light beam is incident on a barium target,which has a work function of 2.6 eV.If a stopping potential of 1.2 V is required,what is the light beam photon energy?
A) 2.6 eV
B) 1.4 eV
C) 1.2 eV
D) 3.8 eV
E) 0.7
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q53: The ultraviolet catastrophe predicts that:<br>A)all objects should
Q54: Bragg reflection results in a first-order maximum
Q55: Which of the following statements best describes
Q56: Rosalind Franklin was<br>A)the maiden name of the
Q57: Which of the following is an indication
Q59: In the Compton effect,what is the greatest
Q60: According to Heisenberg,as the uncertainty in the
Q61: What is the energy of a photon
Q62: If an x-ray machine were designed to
Q63: What is the wavelength of a monochromatic