Question

A study of photosynthesis in phytoplankton in the open ocean used short pulses of laser light to trigger photosynthetic reactions. The investigator’s system used 0.10 mW pulses of 640 nm laser light of length 200 ps. How many photons were contained in each pulse?

Answer 1

An important regulatory document for conducting clinical trials, the Investigator's Brochure (IB) summarizes an investigational medicinal product's (IMP) physical, chemical, pharmaceutical, pharmacological, and toxicological characteristics as well as any clinical experience.

In a clinical trial, what exactly is an investigator site?

Documents that demonstrate the clinical trial site and investigator's compliance with the ICH GCP guidelines can be found in an Investigator Site File (ISF).

power, P = 0.1 mw = 0.1 X10 3 time, t = 200 PS wavelength,  = 640 mm -9 = 640 X 10 -12 = 200 X 10 Sec photon energy

The number of photons is N = Pt 3 0.1 X 10 x 200 x 10-12 3-104x1019. E E 6.62310 - 34 X3108 640 x10-9 J -19 = 3.104 X10.

N= 64.4 X 10

To learn more about Investigator's Brochure here

brainly.com/question/14366756

#SPJ1