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

Author Question: One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher ... (Read 47 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher harmonic has a frequency of 60.9 Hz. What is the fundamental frequency of the string?
 
  A) 26.1 Hz
  B) 8.7 Hz
  C) 4.35 Hz
  D) 30.4 Hz
  E) 17.4 Hz

Question 2

A photocathode having a work function of 2.8 eV is illuminated with monochromatic electromagnetic radiation whose photon energy is 4.0 eV.
 
  What is the threshold (cutoff) frequency for photoelectron production? (1 eV = 1.60  10-19 J, h = 6.626  10-34 J  s)
  A) 6.8  1014 Hz
  B) 2.9  1014 Hz
  C) 7.7  1014 Hz
  D) 8.6  1014 Hz
  E) 9.7  1014 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


ts19998

  • Member
  • Posts: 531
Reply 2 on: Jul 29, 2018
Wow, this really help

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Guitar string Guitar string
A factory replacement unit for a CSFI unit that has individual injectors at the ends that go into ... A factory replacement unit for a CSFI unit that has individual injectors at the ends that go into ...
Higher-Level Thinking Skills Used in Massage Therapy Higher-Level Thinking Skills Used in Massage Therapy
A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ... A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ...
The relationship between recombination frequency and physical distance between genes The relationship between recombination frequency and physical distance between genes
Connecting blunt ends to create recombinant DNA molecules Connecting blunt ends to create recombinant DNA molecules
Video: Pores and Ion Channels

For a complete list of videos, visit our video library