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

Author Question: A CD player uses a laser with wavelength 900 nm. If the CD has a plastic coating with index 1.50, ... (Read 86 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jul 28, 2018
A CD player uses a laser with wavelength 900 nm. If the CD has a plastic coating with index 1.50, what is the wavelength in the plastic?
 a. 600 nm
  c. 1350 nm
  b. 500 nm
  d. 750 nm

Question 2

A pinhole camera is used to photograph a 23-cm tall object at a distance of 3.0 m, the image being projected on film at a distance of 46 cm from the pinhole. What are the height and orientation of the image?
 a. 3.5 cm, upright
  c. 12 cm, upright
  b. 3.5 cm, inverted
  d. 12 cm, inverted


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Viet Thy

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


moongchi

  • Member
  • Posts: 516
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Transdermal patch administration: (a) protective coating removed from patch Transdermal patch administration: (a) protective coating removed from patch
A dead-blow hammer that was left outside in freezing weather. The plastic covering was damaged, ... A dead-blow hammer that was left outside in freezing weather. The plastic covering was damaged, ...
Some plastic intake manifolds are equipped with a pressure relief valve that would open in the ... Some plastic intake manifolds are equipped with a pressure relief valve that would open in the ...
Short-wavelength flux is reflected by Earth Short-wavelength flux is reflected by Earth
The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods
Close-up of a newly created enzyme degrading PET plastic Close-up of a newly created enzyme degrading PET plastic
Video: How eudicots (true dicots) differ from monocots Animation

For a complete list of videos, visit our video library