This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A light-emitting diode has a power output of 0.3 W. If 590 nm is the average wavelength of the ... (Read 73 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 28, 2018
A light-emitting diode has a power output of 0.3 W. If 590 nm is the average wavelength of the source, about how many photons are emitted per second? (h = 6.63  10-34 Js, c = 3.00  108 m/s, and 1 nm = 10-9 m)
 a. 1021
  c. 1018
  b. 1025
  d. 1029

Question 2

Which of the following statements best describes the relation between quantum theory and the photoelectric effect experiment?
 a. The photoelectric effect contradicts quantum theory.
  b. Quantum theory explains the photoelectric effect.
  c. Quantum theory has no bearing on the photoelectric effect.
  d. The photoelectric effect explains quantum theory.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

thall411

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

anyusername12131

  • Member
  • Posts: 327
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Terminals 85 and 86 represent the coil inside the relay. Terminal 30 is the power terminal, 87a is ... Terminals 85 and 86 represent the coil inside the relay. Terminal 30 is the power terminal, 87a is ...
The basic structure of an antibody molecule. Two heavy chains are joined by two light chains. The ... The basic structure of an antibody molecule. Two heavy chains are joined by two light chains. The ...
There is an inherent power differential between massage therapists and their clients. There is an inherent power differential between massage therapists and their clients.
Apply light effleurage around abdomen in a large circle with the palm of a flat hand. Apply light effleurage around abdomen in a large circle with the palm of a flat hand.
British Output and Productivity Growth, 1760–1913 British Output and Productivity Growth, 1760–1913
Light palpation of abdomen Light palpation of abdomen
Video: Phlebotomy

For a complete list of videos, visit our video library