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 58 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
:D TYSM

dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

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?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Andromeda as depicted in Urania's Mirror, set of constellation cards published in London c.1825 Andromeda as depicted in Urania's Mirror, set of constellation cards published in London c.1825
Apply friction to tendons at the elbow with thumb or fingers. Add stripping effleurage along length ... Apply friction to tendons at the elbow with thumb or fingers. Add stripping effleurage along length ...
Find the magnitude and the direction of the resultant vector of the vectors below. Find the magnitude and the direction of the resultant vector of the vectors below.
The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 kg m2about ... The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 kg m2about ...
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Corolla length in tobacco Corolla length in tobacco
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library