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

Author Question: The focal length of a concave mirror has a magnitude of 20 cm. What is its radius of curvature? ... (Read 25 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
The focal length of a concave mirror has a magnitude of 20 cm. What is its radius of curvature?
 
  A) 10 cm
  B) 40 cm
  C) -40 cm
  D) 20 cm
  E) -20 cm

Question 2

When a person with a near point at 28 cm uses a certain magnifying glass, it produces an angular magnification of 7.0 with the image very distant. What is the focal length of the lens of this magnifying glass?
 
  A) 2.0 cm
  B) 3.0 cm
  C) 4.0 cm
  D) 5.0 cm
  E) 6.0 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


Redwolflake15

  • Member
  • Posts: 569
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

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.

Radius and Ulna Radius and Ulna
Cosmic Microwave Background and the Curvature of Space Cosmic Microwave Background and the Curvature of Space
Micro RNAs (miRNA), 20-25 bp in length, can inactivate mRNAs. Micro RNAs (miRNA), 20-25 bp in length, can inactivate mRNAs.
Mirror Neurons in Broca’s Area Mirror Neurons in Broca’s Area
Find the length of x to the nearest tenth of a unit. Find the length of x to the nearest tenth of a unit.
Video: Flexor reflex & Crossed extensor reflex

For a complete list of videos, visit our video library