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Optical Instrument Components

Total questions: 10

Worksheet time: 9mins

Name
Class
Date
1.

Deuterium lamp is one of the example of

a)

continuum source

b)

line source

2.

Type of cuvettes that usually used for UV and Visible

a)

silicate glass

b)

quartz or fused silica

3.

Choose the type of wavelength selector

a)

monochromator

b)

radiation source

4.

Name the component that can convert the radiant energy into electrical signal

(a)  

5.

What is the reaction involved if the electron moves from position 1 to 2?

a)

Light will be emitted

b)

Light will be absorbed

c)

The electron will become less excited

d)

The electron will decrease a quantum

6.
For an electron to change from ground state to an excited stated it must...
a)
Absorb energy
b)
Release energy
7.
Emission of light from an atom occurs when an electron
a)
drops from a higher to a lower energy level.
b)
   jumps from a lower to a higher energy level.   
c)
   moves within its atomic orbital.
d)
falls into the nucleus.
8.

The analysis of the way matter emits and absorbs radiation is called ___.

a)

astronomy

b)

chemistry

c)

spectroscopy

d)

atomic theory

9.
Which is NOT an appropriate detector for a spectrophotometer?
a)
charged coupled device
b)
thermal conductivity
c)
photomultiplier tube
d)
photodiode array
10.

Which type of electron is responsible for UV VIS absorption in a organic molecule?

a)

lone pair electron

b)

charge transfer

c)

p electron

d)

d & f electron