A2.4 x hz laser emits a 3.5-μs pulse that is 5.0 mm in diameter. the average energy density in the beam is what average power is emitted by this laser? (c = 3.0 × 108 m/s, μ0 = 4π × 10-7 t ∙ m/a, ε0 = 8.85 × 10-12 c2/n ∙ m2)
Solved
Show answers
More tips
- H Health and Medicine Is it true that working with a computer is harmful to your eyesight?...
- S Sport When is the Champions League final?...
- H Health and Medicine Is Folic Acid a Necessary Vitamin?...
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
Answers on questions: Physics
- E English Which sentence uses the underlined vocabulary word incorrectly? A. The expediency of indoor plumbing is not arguable - it is absolutely necessary. B. It is smart to...
- M Mathematics 4. chinese checkers is a game in which players move their pieces across a board using single moves or jumps like the traditional game of checkers. use the chinese checker...
- C Chemistry Please Help Me . Thank You!! In the cell, the mixture of aluminium oxide and cryolite is and a is passed through it....
- M Mathematics What is the correct answers ?...
Ответ:
where P is the luminous flux, r is the distance and E is the illumination. The unit for P is lumen, E is lux and r is in meters. Substituting the given to the equation:
P = 4
P= 4
The total luminous flux is equal to 1057.46 lumens (lm).