Which property of laser light is NOT correctly defined/described? extremely bright: high power at one wavelength monochromatic: emits one wavelength of light collimated: parallel rays of light polarized: electric field oscillates between two perpendicular planes

What is the relationship between pathlength and absorbance? Explain this relationship based on your understanding of what is occurring at the molecular level as photons of light travel through the sample.

Quantum mechanics

a) A current path shaped as shown in Figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of 0=30.0° and the radius of the arc is R=0.400 m, what are the magnitude and direction of the field produced at P if the current is =2.00 A? 30.0° b) A loop of a full circle of radius R=0.400 m carries a current of I=2.00 A. What is the magnitude of the magnetic field at its center? Hint: Magnitude of the magnetic field at point P (center of the arc) due to circular arc of radius R carrying a current of I and subtending an angle of 0 is: 50 (6 is in terms of radians, Ho= 41 x 107N.A²) 4 лR

6

How does fluorescence work in bulk semiconductors?

What are differences between n→π* and π →π* bonding electron transition in Fluorescence? Please answer shorty at your own words. Answer should be to the point.

Elliptical cavity is used in Nd:YAG laser to provide better absorption of incident light. Explain . 2) In a coherent state all photons condense into one state . Explain.

Quantum mechanics

2) The electromagnetic radiation of wavelength 2 shown below is typically used in the UV-Vis, the microwave, and NMR spectrometers. a. 0.5 µm (visible radiation, 500 nm, green color used in UV-Vis); b. 0.5 mm (microwave radiation); c. 0.5 m (radio-frequency radiation used in NMR); a) Calculate photon energy Ephoton in each case. b) What is the name of scientist who proposed numeric constant in the formula?