The threshold of hearing is a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 ...

Author Question: The threshold of hearing is a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 ... (Read 157 times)

melina_rosy

Hero Member
Posts: 531

on: Jul 28, 2018

The threshold of hearing is
a. 0 dB.
b. 140 dB.
c. 40 dB.
d. 110 dB.
e. 1 dB.

Question 2

An electron in a hydrogen atom makes a transition from the n = 4 to the n = 3 energy state. Determine the energy (in eV) of the emitted photon.
a. 0.54
b. 0.66
c. 0.85
d. 1.51
e. 10.2

carojassy25

Sr. Member
Posts: 299

Reply #1 on: Jul 28, 2018

Answer to Question 1

a

Answer to Question 2

b

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