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

Author Question: A grating is to be used to find the wavelength of the emission spectrum of a gas. The grating ... (Read 80 times)

WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
on: Jul 29, 2018
A grating is to be used to find the wavelength of the emission spectrum of a gas. The grating spacing is not known,
 
  but light of a known wavelength of 632.8 nm is deflected by 43.2 in the second order by this grating. Light of the wavelength to be measured is deflected by 34.9 in the second order. What is the wavelength of the light that is to be measured?

Question 2

An instrument is rated at 250 W if it is connected across a 120-V dc power supply.
 
  (a) What current does it draw under normal operation?
  (b) What is its resistance?
  (c) How many kilowatt-hours does it use in a day if it is left on all the time?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ultraflyy23

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 29, 2018
Answer to Question 1

529 nm

Answer to Question 2

(a) 2.1 A (b) 58  (c) 6.0 kWh


WWatsford

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

mammy1697

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

« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Emission spectrum of iron Emission spectrum of iron
One-dimensional NMR spectrum of a globin from a marine blood worm One-dimensional NMR spectrum of a globin from a marine blood worm
The Absorption and Emission of an Hα Photon The Absorption and Emission of an Hα Photon
Dirty South ft. Rudy - Find A Way Dirty South ft. Rudy - Find A Way
How to find the tangential and normal components of a vector How to find the tangential and normal components of a vector
Wavelength Wavelength
Video: Haustral churning, Gastrocolic reflex and mass peristalsis & Defecation

For a complete list of videos, visit our video library