CHAPTER V: ANALYTICAL METHODS & INSTRUMENTATION

Question 1

radiant energy; photons of energy travelling in a wavelike manner

Answer 1

ELECTROMAGNETIC ENERGY

Question 2

The shorter the ___________, the higher the __________ energy.

Answer 2

wavelength
electromagnetic

Question 3

What are the types of electromagnetic energy?

Answer 3

1. Cosmic rays
2. Gamma rays
3. X-rays
4. Ultraviolet ( UV)
5. Visible light
6. Infrared (IR)
7. Radio, TV, microwave, etc.

Question 4

It is used to broadcast radio and television

Answer 4

Radio

Question 5

It is used in cooking, radar, telephone and other signals

Answer 5

Microwaves

Question 6

It transmits heat from sun, fires and radiators

Answer 6

Infrared

Question 7

It makes things able to be seen

Answer 7

Visible light

Question 8

It is absorbed by the skin, used in fluorescent tubes.

Answer 8

UV

Question 9

It is used to view inside of the body and objects

Answer 9

X-rays

Question 10

It is used in medicine for killing cancer cells.

Answer 10

Gamma rays

Question 11

distance between two peaks as the light travels in a wavelike manner

Answer 11

WAVELENGTH

Question 12

Wavelength is expresses in _______, ________ and ______.

Answer 12

nanometers (nm), angstroms (Å), and millimicron (mμ)

Question 13

1 nm = ____ Å ;___ nm = ___ mμ

Answer 13

10
1
1

Question 14

340 nm – 700 nm

Answer 14

Visible spectra

Question 15

below 340 nm

Answer 15

(ultraviolet region)

Question 16

above 700 nm

Answer 16

(infrared region)