the answer choice that best completes the statement or answers the question. T t
ID: 1036826 • Letter: T
Question
the answer choice that best completes the statement or answers the question. T th hobrw atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus, a. energy is absorbed b. light is emitted. c. energy is emitted d. no change in energy occurs e. none of these 2. What is the energy of a photon of electromagnetic radiation with a frequency of 1.94 x 104 Hz? . 5.82 x 1022 b. 3.86 x 10-11 1.03 x 10-3J d. 1.55 x 10-6 e.1.29x 10-19J 3. A 1s orbital has ? a. 2 planar nodes and I spherical node. b. 3 planar nodes and 0 spherical nodes. c. O planar nodes and 0 spherical nodes. d. 0 planar nodes and 3 spherical nodes. e. I planar node and 4 spherical nodes. . Which of the following statements is/are CORRECT? FM radio waves have longer wavelengths than visible radiation and AM radio waves have shorter wavelengths than visible radiation. 2. Magnetic resonance imaging (MRI) uses a mixture of x-rays and gamma rays. 3. Exposure to ultraviolet (UV) radiation can lead to sunburns. a. Ionly b. 2 only ?. 3 only , d. 1 and 2 e, 1, 2, and 3Explanation / Answer
Answer:
2) Given frequency v=1.94x10^14 Hz (or)s^-1
We know that from Plank's law
Energy E=hv where h=6.623x10^-34 J.s
E=(6.623x10^-34 J.s) x (1.94x10^14 s^-1)
E=1.29x10^-19 J.
Option (e) is correct.
Here you have asked about question number 2 only. So I answered only 2.
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