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Spectral Colourimeter and Concentration of Solutions Quiz

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Spectral Colourimeter and Concentration of Solutions Quiz

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Questions and Answers

What term is used to describe transitions where absorbed and emitted energy is in the form of photons?

Luminescent transitions

Optical transitions (correct)

Chemical transitions

Radiant transitions

According to Bohr's relation, the energy of the absorbed or emitted photon is related to their frequency or wavelength through which constant?

Einstein's constant

Planck's constant (correct)

Newton's constant

Faraday's constant

What is the name of the graphical representation that shows a decrease in light intensity around certain wavelengths?

Energy transition plot

Absorption spectrum (correct)

Spectral absorption chart

Photon graph

During spectral analyses, what kind of information is provided by qualitative analysis?

Chemical elements and their composition Signup and view all the answers

What law dictates the decrease in intensity of transmitted light when a parallel monochromatic beam passes through a substance?

Lambert's law Signup and view all the answers

Which factor does the absorption index µ depend on when light passes through a substance?

Wavelength of the light Signup and view all the answers

What is the basis of quantitative spectral analysis discussed in the text?

The law of Bouguer-Lambert-Beer Signup and view all the answers

Why are atomic absorption spectra used in clinical laboratories according to the text?

To analyze microelements in biological tissues Signup and view all the answers

What is the main premise of the spectral analysis method according to the text?

Atoms and molecules absorb specific portions of energy Signup and view all the answers

Why is excited state not stable in time according to the text?

As a result of absorbing particular energy portions Signup and view all the answers

What do electrons do when they absorb particular portions of energy, as mentioned in the text?

They jump to higher energy states Signup and view all the answers

How are energetic levels for atoms of a certain chemical element formed according to the text?

By discrete energy levels Signup and view all the answers