This topic contains a solution. Click here to go to the answer

Author Question: A double-convex thin lens has radii of curvature of magnitude 46 cm, and it is made of glass of ... (Read 107 times)

michelleunicorn

  • Hero Member
  • *****
  • Posts: 565
A double-convex thin lens has radii of curvature of magnitude 46 cm, and it is made of glass of index of refraction 1.60. What is the focal length of this lens?
 
  A) infinite B) -30 cm C) 18 cm D) 38 cm E) -19 cm

Question 2

A light beam from a 2.1-mW He-Ne laser has a wavelength of 633 nm. How many photons does the laser emit in one second?
 
  (h = 6.626  10-34 J  s, c = 3.00  108 m/s)
  A) 1.3  1016 B) 6.7  1015 C) 8.8  1015 D) 1.1  1016



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

D

Answer to Question 2

B




michelleunicorn

  • Member
  • Posts: 565
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

For a complete list of videos, visit our video library