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

Author Question: Two extremely flat glass plates, 10.0 cm wide, touch at one end but are separated by a thin wire at ... (Read 222 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jul 29, 2018
Two extremely flat glass plates, 10.0 cm wide, touch at one end but are separated by a thin wire at the other end, forming a wedge.
 
  Light with a wavelength of 450 nm shines almost perpendicularly on the glass and forms fringes which are 1.80 mm apart. What is the diameter of the wire?
  A) 25.0 m B) 10.0 m C) 20.0 m D) 12.5 m E) 17.5 m

Question 2

A 35-mm digital camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. You now refocus the camera on a 15.0 cm tall flower that is 75.0 cm from the lens.
 
  (a) In refocusing, by how much did you move the lens? Did you move it toward the film or away from it?
  (b) What is the height of the flower's image on the CCD sensor?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chereeb

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

(a) 2.79 mm, away from the film (b) 10.7 mm


lbcchick

  • Member
  • Posts: 550
Reply 2 on: Jul 29, 2018
Wow, this really help

strudel15

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Colors separated by a prism into the spectrum Colors separated by a prism into the spectrum
As the glass ceiling slowly cracks, women are gaining entry into the top positions of society. Shown ... As the glass ceiling slowly cracks, women are gaining entry into the top positions of society. Shown ...
Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ... Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ...
Use flat fingers to apply L stroke in several locations to cover the entire forehead, from midline ... Use flat fingers to apply L stroke in several locations to cover the entire forehead, from midline ...
Guidelines for Creating Small Plates Guidelines for Creating Small Plates
An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 ... An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 ...
Video: Depolarization of the SA node, Action potentials of the myocardium & ANS effects

For a complete list of videos, visit our video library