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 231 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
Gracias!

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ... This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ...
Mosaic glass bowl, fused and slumped, Roman. Mosaic glass bowl, fused and slumped, Roman.
(A) Effleurage to entire arm to apply oil or lotion. (B) Apply with flat palms and fingers from ... (A) Effleurage to entire arm to apply oil or lotion. (B) Apply with flat palms and fingers from ...
European Flat Oysters European Flat Oysters
A small 355-g box hangs from one end of a thin light string that goes over a frictionless ... A small 355-g box hangs from one end of a thin light string that goes over a frictionless ...
Samples of the DNA separated by gel electrophoresis Samples of the DNA separated by gel electrophoresis
Video: Properties of water -structure of water and polarity (Ionized and polar compounds)

For a complete list of videos, visit our video library