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

Author Question: A coin is 12 cm in front of a convex lens with focal length of magnitude 4.0 cm. Where is the image? ... (Read 91 times)

Awilson837

  • Hero Member
  • *****
  • Posts: 509
on: Jul 29, 2018
A coin is 12 cm in front of a convex lens with focal length of magnitude 4.0 cm. Where is the image?
 
  A) 8.0 cm behind the lens
  B) 6.0 cm in front of the lens
  C) 6.0 cm behind the lens
  D) 4.0 cm in front of the lens

Question 2

A small gas laser of the type used in classrooms may radiate light at a power level of 2.0 mW.
 
  If the wavelength of the laser light is 642 nm, how many photons does it emit per second? (c = 3.0  108 m/s, h = 6.626  10-34 J  s)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jgranad15

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

6.5  1015


Awilson837

  • Member
  • Posts: 509
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

ebonylittles

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

« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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.

The image formed on the retina is inverted. The brain rights the image as part of the interpretation The image formed on the retina is inverted. The brain rights the image as part of the interpretation
skull front skull front
LBJ cultivated the masculine image of a Texas cowboy. Biographers have suggested that Johnson was ... LBJ cultivated the masculine image of a Texas cowboy. Biographers have suggested that Johnson was ...
Weather Typically Associated with Cold Front (North America) Weather Typically Associated with Cold Front (North America)
Measuring leg length Measuring leg length
Video: Burn Animation

For a complete list of videos, visit our video library