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

Author Question: How many photons per second emerge from a laser of power 2.00 mW with wavelength 605 nm? (c = 3.00 ... (Read 29 times)

maychende

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
How many photons per second emerge from a laser of power 2.00 mW with wavelength 605 nm? (c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 6.09  1015 photons/s
  B) 5.03  1012 photons/s
  C) 3.07  1015 photons/s
  D) 3.07  1013 photons/s

Question 2

The focal length of the lens of a simple digital camera is 40 mm, and it is originally focused on a person 25 m away. In what direction must the lens be moved to change the focus of the camera to a person 4.0 m away?
 
  A) It does not make any difference.
  B) sideways from the CCD sensors
  C) away from the CCD sensors
  D) towards the CCD sensors
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AmberC1996

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 55% of students answer this correctly


maychende

  • Member
  • Posts: 556
Reply 2 on: Jul 29, 2018
Gracias!

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

A laser-guided observation of the Milky Way Galaxy at the Paranal Observatory in Chile in 2010. A laser-guided observation of the Milky Way Galaxy at the Paranal Observatory in Chile in 2010.
Three Mile Island Nuclear Power Plant in PA. Three Mile Island Nuclear Power Plant in PA.
Cylinder Power Balance Test Cylinder Power Balance Test
Politics, Power and the Common Good: An Introduction to Political Science, 5/E Politics, Power and the Common Good: An Introduction to Political Science, 5/E
Simplify. Write as a single power. Simplify. Write as a single power.
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Sigmoidoscopy

For a complete list of videos, visit our video library