« previous next »

Author Question: The threshold of hearing is a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 ... (Read 132 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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

A hearing-impaired patient using an interpreter. A hearing-impaired patient using an interpreter.
A funnel helps in hearing if the electric fuel pump inside the gas tank is working. A funnel helps in hearing if the electric fuel pump inside the gas tank is working.
Brain nerve and hearing Brain nerve and hearing
The threshold model explains the discontinuous distribution of some multifactorial traits. In this m The threshold model explains the discontinuous distribution of some multifactorial traits. In this m
Familial Risks for Multifactorial Threshold Traits Familial Risks for Multifactorial Threshold Traits
Hearing level comparison amongst workers Hearing level comparison amongst workers
Video: Inflammatory response Animation

For a complete list of videos, visit our video library