Match List-I with List-II:
List-I List-II (a) UV rays (i) Diagnostic tool in medicine (b) X-rays (ii) Water purification (c) Microwave (iii) Communication, Radar (d) Infrared wave (iv) Improving visibility in foggy days
Choose the correct answer from the options given below :
Match List-I with List-II:
| List-I | List-II |
|---|---|
| (a) UV rays | (i) Diagnostic tool in medicine |
| (b) X-rays | (ii) Water purification |
| (c) Microwave | (iii) Communication, Radar |
| (d) Infrared wave | (iv) Improving visibility in foggy days |
Choose the correct answer from the options given below :
- (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
- (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
- (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
- (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
The Correct Option is B
Solution and Explanation
To solve the question of matching List-I with List-II, we need to understand the application of each type of wave or ray listed in List-I:
- UV rays: These are commonly used in water purification systems because they have the ability to kill bacteria and viruses present in the water. UV rays can penetrate microorganisms and destroy their DNA, making them an effective method for disinfecting water. Thus, the correct match is with (ii) Water purification.
- X-rays: These rays are widely used as a diagnostic tool in medicine. X-rays can penetrate tissues and create images of the inside of the body, which are used for diagnosing fractures, infections, and other medical conditions. Therefore, X-rays best match with (i) Diagnostic tool in medicine.
- Microwave: Microwaves are used in communication and radar systems. They can transmit signals over long distances and are crucial for modern communication systems, including satellite transmission. Hence, microwaves correctly pair with (iii) Communication, Radar.
- Infrared wave: These waves are used for improving visibility in foggy conditions. Infrared waves can penetrate fog effectively, which enhances visibility. As such, Infrared waves correspond to (iv) Improving visibility in foggy days.
Based on the reasoning above, the correct matching of the lists is:
| List-I | List-II |
|---|---|
| (a) UV rays | (ii) Water purification |
| (b) X-rays | (i) Diagnostic tool in medicine |
| (c) Microwave | (iii) Communication, Radar |
| (d) Infrared wave | (iv) Improving visibility in foggy days |
Therefore, the correct answer to the given question is: (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv).
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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.
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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:
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