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

Author Question: A laser emits light of wavelength 463 nm during a brief pulse that lasts for 25 ms and has a total ... (Read 77 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
A laser emits light of wavelength 463 nm during a brief pulse that lasts for 25 ms and has a total energy of 1.2 J. How many photons are emitted in that single pulse? (c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 2.2  1017 B) 3.4  1019 C) 2.8  1018 D) 6.9  1019 E) 1.1  1017

Question 2

A series circuit contains a 1.0-k  resistor, a 5.0-mH inductor, and an ideal 25-V power supply. What is the time constant for the circuit?
 
  A) 1.6 s B) 1.6 s C) 5.0 s D) 5.0 s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


darbym82

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
:D TYSM

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

The nurse applies a pulse oximeter sensor on the client’s finger. The nurse applies a pulse oximeter sensor on the client’s finger.
Lithotripsy. The direction of a sound pulse crushes the stones into smaller fragments that can be pa Lithotripsy. The direction of a sound pulse crushes the stones into smaller fragments that can be pa
Palpation of apical pulse Palpation of apical pulse
Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl
A light shield over an optical sensor being installed before the rotor is attached. A light shield over an optical sensor being installed before the rotor is attached.
Testing the corneal light reflex Testing the corneal light reflex
Video: Conjunctivitis

For a complete list of videos, visit our video library