Electromagnetic Waves

Question 1

Arrange all the electromagnetic waves in increasing order of their wavelength?

Answer 1

1.Gama ray
2. x-ray
3. UV ray
4. Visible light {VIBGYOR}
5. Infrared Wave
6. Microwave
7. Radio wave

Question 2

Microwave has a critical role in which technology?

Answer 2

1. Radar and Telecommunication
2. Molecular Analysis : Analysis of fine structure

Question 3

What are the uses of infrared waves?

Answer 3

1. Industry, Medicine, and Astronomy: Heating materials, medical imaging, and observing space.
2. Fog or Haze: Improving visibility in poor weather.
3. Elucidating (स्पष्टीकरण देना) photography molecular structure : using imaging techniques (often involving light) to clearly understand the detailed arrangement and composition of molecules.

Question 4

UV light is used for ?

Answer 4

(a) To detect adulteration (मिलावट) , writing and signature
(b) Sterilization of water due to
its destructive action on bacteria.

Question 5

Electromagnetic waves that can be used to study molecular structure ?

Answer 5

1. Visible light
2. Infrared wave
3. Microwave

Question 6

Which light is used to see the objects ?

Answer 6

Visible light

Question 7

Which Ray is used in industrial radiography ?

Answer 7

X-Ray

Question 8

Which Ray is used in industrial radiography ?

Answer 8

X-Ray

Question 9

Name the electromagnetic waves used for medical diagnosis and treatment ?

Answer 9

1. X-ray
2. Gamma ray
3. Infrared Ray

Question 10

Which type of radiation provides information about nuclear structure?

Answer 10

Gamma Ray