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 65 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
YES! Correct, THANKS for helping me on my review

  • Member
  • Posts:
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Laser photocoagulation. Laser photocoagulation.
The growing demand for electrical power, carbon sequestration and storage must be a priority The growing demand for electrical power, carbon sequestration and storage must be a priority
The Power of Classical Conditioning The Power of Classical Conditioning
Calculate the Wavelength Calculate the Wavelength
How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ... How wide must a narrow slit be if the first diffraction minimum occurs at 12 with laser light ...
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library