« previous next »

Author Question: The wavelength of the emitted photon when a hydrogen atom makes a transition from the n = 2 state to ... (Read 59 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jul 29, 2018
The wavelength of the emitted photon when a hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0  108 m/s, h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
 
  A) 122 nm
  B) 203 nm
  C) 243 nm
  D) 389 nm
  E) 411 nm

Question 2

A 1.0-C point charge is 15 m from a second point charge, and the electric force on one of them due to the other is 1.0 N. What is the magnitude of the second charge? (k = 1/40 = 8.99  109 N  m2/C2)
 
  A) 25 C
  B) 1.0 C
  C) 10 nC
  D) 0.025 C
  E) 25 nC


Hdosisshsbshs

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

During confrontations with others, the mane makes the lion look larger. During confrontations with others, the mane makes the lion look larger.
Hydrogen Bonds Can Form Between or Within Molecules Hydrogen Bonds Can Form Between or Within Molecules
Plasma protein binding and drug availability: (a) The drug exists in a free state or is bound to ... Plasma protein binding and drug availability: (a) The drug exists in a free state or is bound to ...
Basic effleurage distal to proximal as a transition technique. Apply first to the upper thigh and ... Basic effleurage distal to proximal as a transition technique. Apply first to the upper thigh and ...
The steady state in enzyme kinetics The steady state in enzyme kinetics
A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ... A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ...
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library