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 82 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
Excellent

laurnthompson

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Find the final amount if the initial amount is 400 units. Find the final amount if the initial amount is 400 units.
The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve. The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve.
How to find the derivative of a function when the base and exponent contain a variable x^x How to find the derivative of a function when the base and exponent contain a variable x^x
How to find the average atomic mass of an element How to find the average atomic mass of an element
How to quickly find the vertex of a quadratic equation that is in standard form How to quickly find the vertex of a quadratic equation that is in standard form
Short-wavelength flux is reflected by Earth Short-wavelength flux is reflected by Earth
Video: Phases of mitosis

For a complete list of videos, visit our video library