A Solid State Pulsed Laser Has an Energy of 400

question 12

Multiple Choice

A solid state pulsed laser has an energy of 400 mJ per pulse.If its wavelength is 1.06 * 10-6 m, how many photons are in each pulse?

• A)2 * 1025
• B)2 * 1021
• C)3 *1018
• D)6 * 1038
• E)2 * 1018

---

Definitions:

Level Of Investment

The amount of spending by businesses on capital goods, such as factories and machinery, which can influence economic growth.

Keynes

Refers to John Maynard Keynes, an economist famous for his ideas that in times of low demand, public sector investments are critical to economic stability and growth.

Macroeconomic Policies

Strategies and initiatives implemented by a government or monetary authority to control and improve the overall performance of the economy, including monetary, fiscal, and trade policies.

Federal Government

The national government of a federation, which holds the authority to govern issues that affect the entire country, distinct from state or local governments.