Photoelectric Detector and Energy Measurements

1. The problem statement, all variables and given/known data

Which of the following best summarizes how a photoelectric detector provides an energy measurement:

Answer choices:

A) As light of multiple colors falls on the detector, the detector measures the energy of just one frequency of light by having a hole of only one wavelength to let light in. We measure the size of the hole, and infer the energy, with a multimeter.

B) As light of one color falls on the detector, it changes the temperature of the detector. We measure the temperature of the detector, and infer the energy, with a multimeter.

C) As light of one color falls on the detector, the detector measures the frequency of the light by looking at how fast the electric field oscillates. We measure the frequency, and infer the energy, with a multimeter.

D) As light of one color falls on the detector, it ejects electrons that charge a capacitor. We measure the voltage of the capacitor, and infer the energy, with a multimeter.

E) There is no way to measure or infer energy of light with the photoelectric device. The device generates the light that we measure the energy of. The multimeter directly reads energy of the light.

F) As light of multiple colors falls on the detector, the detector looks at the correlation between the colors. We measure that correlation, and infer an energy, with a multimeter.

2. Relevant equations

hf = KE + work function

3. The attempt at a solution

I thought the answer was D, but now I am not so sure since the other answers are unclear. However, I don’t think temperature has anything to do with it. Any advice would be great 🙂 Thanks.

http://ift.tt/1hFvFBZ

3 Comments

  1. En outre, le diamètre du fil de plomb casque épais, doux, pas raide. Son cahier des charges plug soigné sans pépins, revêtement lisse et uniforme.

  2. Alors j’ai pensé, pourquoi ne pas partager mon expérience avec les personnes qui visitent ces films il Et, pour l’impression de toutes sortes de classements sont très mécontent de moi, mais aussi selon leurs propres goûts et dégoûts, pour donner une série de ma propre liste de classement, l’espoir de la recherche pour les amateurs de films de cinéma, regarder des films jouent une référence effet. Peut-être, il serait ma réponse à la mère patrie.

  3. Prix ​​HERBORIST est plus cher, mais il est très bon produits pour la maison, les internautes recommandées ici sont très bon produit avec une première boue de beauté musculaire Tai Chi Ching, son emballage est très élégant, très ancienne culture de charme médiéval . 290g prix de trucs 380 yuans, après évaluation par l’un des utilisateurs sont très bons, mais aussi produit phare phare HERBORIST.

Leave a comment

Your email address will not be published.


*


Show Buttons
Hide Buttons