Question: # 7 Assume that a 1 0 0 - W red lightbulb gives off 2 . 5 0 % of its energy as visible red

#7 Assume that a 100-W red lightbulb gives off 2.50% of its energy as visible red light of the 680 nm wavelength. How many photons of the light are given off in 20.0 s?
Answer: 1.71x1020 photons

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Q:

Atomic Structure and Light Background Material Carefully read all the material under the links in the Hydrogen Energy Levels NAAP website lab, then answer the following questions. Complete the...

Q:

Atomic Structure and Light Remember to type your answers in blue text Background Material Carefully read all the material under the links in the Hydrogen Energy Levels NAAP lab, then answer the...

Q:

3 Question 1 (1 point) Saved There is a commercial laser which emits a photon of light with an energy of 4.04x10 19 J. Planck's constant is 6.63x10-34 J's. On the basis of these facts and the...

Q:

a Let Us Try! '\\ Hello! I hope you are having a good day. Before proceeding to Lesson 1, try to read and answer the activity below rst. Let us try rst your understanding of the concept. Get 1/2...

Q:

4 Files 12:47 PM Mon May 16 Insert Draw Layout Review View Unit 3Microec0nomics Name: ELASTICITY Use the space below to take notes during class. Elastic: Unit Elastic: Inelastic: Perfect...

Q:

Based on the evolution of international marketing since Levitt's article "The Globalization of Markets" published in 1982 and on what you have learned in this course, what do you think the next 20...

Q:

I need help to all the questions in the document attached. I'm trying to study for my final that is 1 day and these are crucial for me. Investment Management 333-693 Final Examination Seat No:...

Q:

explained welll Exercise 9.6 (Moderate) In the last step, you will simulate business cycles in the model economy. All you need to know is the capital ki at the beginning of time and the random shocks...

Q:

""solve the attached questions. Question 2 (50 points) This question considers the macroeconomic effects of a collapse in consumer demand in the New Keynesian model There are a continuum of identical...

Q:

answer asap please and thank you HIPE A WO INO 4 MOON OM CONTINE EN UW 48 3 2002 PERO EGO 25 . 3 1 2 3 NE MA WOWE es KOTARVATKO VIENEWACOWANIU COM EXHIBIT 2 web 674 10 AN ere MO 7 73 19 2000 1 23...

Q:

For each report below, indicate whether the report is likely to be for internal or external users (some reports may be both), and whether data would come exclusively from the general ledger. The...

Q:

Write a paper on the following: environmental scanning on United Arab Emirates (UAE) External analysis is the broader activity of understanding the changing external environment that may impact the...

Q:

3. Find the mode(s) of each of the following sets of numbers. (a) 2,5,8,3,7,5,3,9,7,3 (b) 8.1, 7.7, 7.8, 9.3, 6.4, 7.7, 9.3, 8.7 (c) 11.3, 10, 21, 14.5, 26, 11, 20.1

Q:

Question Help Park Industries manufactures custom-designed playground equipment for schools and city parks. Park expected to incur $750,600 of manufacturing overhead cost, 41,700 of direct labor...