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

Author Question: An object is in front of a concave spherical mirror, and its image is 4.0 cm behind the mirror. If ... (Read 106 times)

mia

  • Hero Member
  • *****
  • Posts: 564
on: Jul 29, 2018
An object is in front of a concave spherical mirror, and its image is 4.0 cm behind the mirror. If the focal length of the mirror has a magnitude of 5.0 cm, where is the object?
 
  A) 2.2 cm in front of the mirror
  B) 2.2 cm behind the mirror
  C) 9.0 cm in front of the mirror
  D) 1.0 cm behind the mirror

Question 2

What is the longest wavelength of light that can cause photoelectron emission from a metal that has a work function of 2.20 eV? (1 eV = 1.60  10-19 J, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 417 nm
  B) 257 nm
  C) 344 nm
  D) 565 nm
  E) 610 nm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


mia

  • Member
  • Posts: 564
Reply 2 on: Jul 29, 2018
Wow, this really help

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Bobcat in the front yard of a residence in Southern California Bobcat in the front yard of a residence in Southern California
All objects in the image are distant galaxies – not stars All objects in the image are distant galaxies – not stars
Conjunctivitis, with the characteristic “pinkeye” appearance. A yellow crusty exudate is also common Conjunctivitis, with the characteristic “pinkeye” appearance. A yellow crusty exudate is also common
Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th
Palette of King Narmer (front), Hierakonpolis, Upper Egypt. Palette of King Narmer (front), Hierakonpolis, Upper Egypt.
Effleurage to leg and around hip joint. Slide palms over the front of the leg as a connecting and ... Effleurage to leg and around hip joint. Slide palms over the front of the leg as a connecting and ...
Video: Rh blood type and complications during pregnancy & Fertilization

For a complete list of videos, visit our video library