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 88 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
Wow, this really help

pratush dev

  • Member
  • Posts: 321
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu
Rhytidoplasty. This is a common form of plastic surgery in which the skin is pulled and sutured to d Rhytidoplasty. This is a common form of plastic surgery in which the skin is pulled and sutured to d
Laser Pointer Laser Pointer
Wind Chill Index Wind Chill Index
Cranial polarization. Lightly place both thumbs on the anterior fontanel, with both index fingers ... Cranial polarization. Lightly place both thumbs on the anterior fontanel, with both index fingers ...
Wavelength Wavelength
Video: Knee Animation

For a complete list of videos, visit our video library