A). In fluoresence, a molecule will: absorb visible EMR and emit UV EMR absorb I

Question

A). In fluoresence, a molecule will:

absorb visible EMR and emit UV EMR

absorb IR EMR and emit visible EMR

absorb IR EMR and emit Gamma EMR

A and C are correct.

None of the above

B). Generates an electric current when radiant energy falls on it.

Which of these:

Tungsten lamp

Barrier layer cell

Photomultiplier tube

Monochromator

Hollow cathode tube

C). In spectrophotometry, light of a specific wavelength can be isolated from white light with a/an:

double beam

diffraction grating

aperture

slit

B). Generates an electric current when radiant energy falls on it.

Which of these:

Tungsten lamp

Barrier layer cell

Photomultiplier tube

Monochromator

Hollow cathode tube

C). In spectrophotometry, light of a specific wavelength can be isolated from white light with a/an:

double beam

diffraction grating

aperture

slit

Explanation / Answer

A none of the above is correct

b Photomultiplier tube

c diffraction grating

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