Match List I with List II:List I List II A Microwaves i Radioactive decay of the nucleus B Gamma waves ii Rapid acceleration and deceleration of electrons in aerials C Radio waves iii Inner shell electrons D X - rays iv Klystron valve
Choose the correct answer from the options given below:
| List I | List II | ||
| A | Microwaves | i | Radioactive decay of the nucleus |
| B | Gamma waves | ii | Rapid acceleration and deceleration of electrons in aerials |
| C | Radio waves | iii | Inner shell electrons |
| D | X - rays | iv | Klystron valve |
- A-I, B-II, C-III, D-IV
- A-I, B-III, C-IV, D-II
- A-IV, B-I, C-II, D-III
- A-IV, B-III, C-II, D-I
The Correct Option is D
Solution and Explanation
The correct asnwer is (D) : A-IV, B-III, C-II, D-I
A Klystron valve or the magnetron valve are generally used for the production of Microwave.
Gamma radiation takes place from radioactive decay of nucleus.
Radio waves can be produced by rapid acceleration and deceleration of electrons in aerials.
When a solid or gaseous target is bombarded with heavy charged particles, inner shell electrons of target atoms are ionized and characteristic x rays are produced.
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Concepts Used:
Electromagnetic waves
The waves that are produced when an electric field comes into contact with a magnetic field are known as Electromagnetic Waves or EM waves. The constitution of an oscillating magnetic field and electric fields gives rise to electromagnetic waves.
Types of Electromagnetic Waves:
Electromagnetic waves can be grouped according to the direction of disturbance in them and according to the range of their frequency. Recall that a wave transfers energy from one point to another point in space. That means there are two things going on: the disturbance that defines a wave, and the propagation of wave. In this context the waves are grouped into the following two categories:
- Longitudinal waves: A wave is called a longitudinal wave when the disturbances in the wave are parallel to the direction of propagation of the wave. For example, sound waves are longitudinal waves because the change of pressure occurs parallel to the direction of wave propagation.
- Transverse waves: A wave is called a transverse wave when the disturbances in the wave are perpendicular (at right angles) to the direction of propagation of the wave.