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

Author Question: The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can ... (Read 77 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jul 27, 2018
The work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal?
 
  A) 231 nm
  B) 14.0 nm
  C) 62.4 nm
  D) 344 nm
  E) 653 nm

Question 2

How many orders are in the spectra formed by a grating with 3000. lines/cm illuminated by red light of wavelength 600. nm?
 
  A) 1
  B) 5
  C) 0
  D) 4
  E) 3


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

guyanai

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

B


theo

  • Member
  • Posts: 698
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Function of the Rb protein Function of the Rb protein
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
How to find an angle in radians for any given trigonometric function How to find an angle in radians for any given trigonometric function
Math work Math work
Speed of Light in Different Mediums Speed of Light in Different Mediums
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ... A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
Video: Sperm Formation

For a complete list of videos, visit our video library