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 68 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
Thanks for the timely response, appreciate it

bitingbit

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

A comparison of the sizes of various chemical and biological structures, and the resolving power of A comparison of the sizes of various chemical and biological structures, and the resolving power of
The League of Nations, the Kellogg-Briand Pact, the Nine-Power Treaty—all were mere scraps of ... The League of Nations, the Kellogg-Briand Pact, the Nine-Power Treaty—all were mere scraps of ...
Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ... Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ...
The relative penetrating power of alpha, beta, and gamma radiation. Gamma and neutron radiation are ... The relative penetrating power of alpha, beta, and gamma radiation. Gamma and neutron radiation are ...
France has produced most of its energy from nuclear power since the oil crisis of the 1970s France has produced most of its energy from nuclear power since the oil crisis of the 1970s
Simplify. Write as a single power. Simplify. Write as a single power.
Video: Proteins Defined, Hierarchy & Composition of Cells

For a complete list of videos, visit our video library