Suppose that the electrons in an atom have 0.1eV of energy. In these units, Planck's constant is about 4×10-15eVs. The highest frequency which could possibly be emitted is
(A) 4×1015Hz. --
(B) 0.1 Hz.
(C) 2.5×1015Hz.
(D) 2.5×1013Hz.
Suppose that the electrons in an atom have 0.1eV of energy. In these units, Planck's constant is about 4×10-15eVs. The highest frequency which could possibly be emitted is
(A) 4×1015Hz. -- No.
Solve E=hf for f.
Suppose that the electrons in an atom have 0.1eV of energy. In these units, Planck's constant is about 4×10-15eVs. The highest frequency which could possibly be emitted is
(B) 0.1 Hz. -- No.
Solve E=hf for f.
Suppose that the electrons in an atom have 0.1eV of energy. In these units, Planck's constant is about 4×10-15eVs. The highest frequency which could possibly be emitted is
(C) 2.5×1015Hz. -- No
Notice that E = 10-1eV
Suppose that the electrons in an atom have 0.1eV of energy. In these units, Planck's constant is about 4×10-15eVs. The highest frequency which could possibly be emitted is
(D) 2.5×1013Hz. -- Yes.
E=hf, so f = E/h
or f = (10-1eV)/(4×10-15eVs) = ¼×1014s-1