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 229 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
Great answer, keep it coming :)

cpetit11

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Common touch sensations. Common touch sensations.
Reconnect the lower and upper back with horizontal stroking from lower back to shoulders. Keep flat, ... Reconnect the lower and upper back with horizontal stroking from lower back to shoulders. Keep flat, ...
Finish with effleurage and passive touch. Apply effleurage to both sides simultaneously, starting at ... Finish with effleurage and passive touch. Apply effleurage to both sides simultaneously, starting at ...
Small Plates Small Plates
Evaluation of light touch Evaluation of light touch
Extraordinary Beach Sea Glass Extraordinary Beach Sea Glass
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library