How Microwave works ?

How do microwaves operate?

The electrons inside a microwave oven are produced by a tube called a magnetron. Microwaves are reflected in the metal interior of the oven where they are absorbed by the food. Microwaves vibrate the water molecules in the food, creating the cooking heat.

Working in Microwave Science:

The theory behind microwaves is very simple—it's all about the atom. As you add energy to an molecule or particle, it trembles; More energy equals more vibration, and this generates heat.

 

Fig 1.1 Microwave Oven 

Even though many of us know how to use it, do you know what a microwave is? How does it work and what are the uses of these microwave ovens etc.?

Being a user of a microwave oven, you must know about its working principle because until we understand the working of a microwave, we will not know about the actual uses of the microwave oven.

A microwave oven converts electromagnetic energy, which has a low frequency, into electromagnetic energy with a high frequency, which is easily absorbed by food items and later converted into heat.

Because so many people have asked us about what a microwave is and how it works, I thought I'd provide you with complete information about what a microwave oven is in Hindi so you can get a better understanding of it. Don't have any doubts either. So without hesitation, let's start and learn about microwave ovens.

What microwave oven can do? Microwave Oven

A microwave oven is a very popular kitchen device that serves to heat and cooks food. This process uses microwave radiation from the electromagnetic spectrum to provide tasty and nutritious food in a very short time.

In addition, it also maintains the nutrients present in the food. Microwave ovens are used to heat pre-cooked foods, a variety of foods. In addition, they are also used for rapid heating of slowly prepared cooking items such as hot butter, fats, and chocolate.

The materials in which water is present in the microwave oven quickly absorb the microwave energy, which is later converted into heat. A microwave oven cooks food six times faster than a traditional oven. Microwave ovens save a lot of energy due to their quick cooking.

Tappan first launched the microwave for home use in the year 1955, while the microwave oven was first introduced by Amana Corporation in the year 1967.

Microwaves are a form of electromagnetic wave whose wavelengths range from 1 meter to 1 millimeter, with their frequencies being 300 MHz (100 cm) and 300 GHz (0.1 cm). Microwave signals always propagate in straight lines and are rarely affected by the troposphere. They are not refracted or reflected from the ionized regions in the upper atmosphere.

 

Fig 1.2 Microwave Structure

Types of microwave ovens.

If you search the market, there are 3 types of microwave ovens. It would be better to write about them. Let me add a video for you guys. By watching the video given below, you will understand how many types of ovens there are and what you will be able to do with their help.

What are the Microwave oven applications?

The discovery of microwaves was a great boon for our civilization. because it is used in many places all over the world. So let's learn more about these microwave applications.

Microwaves are most usually use in point-to-point communication links namely, wireless networks, microwave radio relay networks, radar, satellite, and spacecraft communications.

These microwaves are extremely high-frequency radio waves, produced by a series of transmitters. These help the water and fat molecules vibrate, making the substance hot, and therefore, microwave ovens are used to cook many types of food in microwaves.

Microwaves are also used in mobile phones that are produced by small antennas. Microwaves are also used in Wi-Fi.

Microwaves are also used in fixed traffic speed cameras as well as a radar by many aircraft, ships, and weather forecasters.

Microwaves are also used in spacecraft communications, meaning they are used to transfer most of the world's data, television, and telephone communications over long distances between ground stations and communication satellites. Microwaves are also used in microwave ovens and radar technology.

How does a microwave work?

Working process for microwave ovens.

Many people use microwave ovens in their homes, but there are very few people who have some knowledge about the workings of microwave ovens, so let's learn about the workings of microwave ovens:

The principle of the microwave oven is based on microwave radiation. A microwave oven is made of an aluminum metal box from which radiation cannot pass, and it uses a magnetron, which is a microwave generator.

When a user switches on a microwave oven to make food, this magnetron receives electricity from a power outlet and converts it into high-powered radio waves.

This microwave oven has a waveguide, a turntable, and a timer switch.

When food enters the room and the timer is on, it sends a command to the magnetron to send the microwave to the turntable, which results in it starting to spin. These microwaves heat the food, which contains water molecules.

So when the oven is on and these microwaves hit those water molecules, those water molecules start to vibrate at a high speed, which creates heat. The turntable rotates inside the oven and cooks the food slowly.

What happens if you put a mirror in the microwave?

Mirror for Microwave Oven

A Microwave Oven Mirror is very useful because it allows the user to see how the food is cooking inside the microwave oven while also preventing microwaves from escaping. If the mirror in your microwave oven is broken, you can easily replace it and use a new one, but you may need the assistance of a qualified technician.

Microwave Oven Applications

Buying a microwave is not enough if you do not know about its uses. Below I have tried to tell you about some uses for which you can use:-

1. Reheating - Whereas it was difficult to reheat in a traditional oven due to the risk of burning the food. In such a situation, you can use a microwave oven to re-heat very comfortably. In this, you just have to fill the food container in the oven, and your food gets reheated in a few seconds.

Microwave ovens are use to heat up food devoid of wet it and keeping it almost in its original form. That's why microwave ovens are used more in homes and bakery shops to heat different pastries, cakes, and other food items.

2. Baking - A microwave oven can be used to bake cakes and bread. It is very easy to use, and very quickly you can make cakes of delicious varieties. The cakes are equally soft and excellent to consume.
3. To defrost: A microwave oven is used to defrost frozen vegetables and meats. Previously, they had to waste a lot of washing, draining, and water. It is also very efficient because it helps in maintaining the food in its original form and nutrients.
4. For Roasting – You can roast garlic, garlic bread, popcorns, etc. quickly using a microwave oven. The process of roasting food is very common in India, and this is our traditional method of Indian cooking.
5. To do blanching: The blanching done by microwave is much better than the traditional blanching methods. This is because the nutritional value of fruits and vegetables is not compromised, and it is also done in a very short time.
6. Boiling and also steaming—Boiling is a very important way of cooking food. A microwave cooks food evenly in a matter of minutes, whereas traditional boiling techniques waste a lot of energy and also take a lot of time. Apart from this, steaming vegetables in it keeps the nutrients of the food and the wastage is negligible.
7. Retains nutritional value—Nutrients are very important for food items because they provide us with the right nutrition for the growth and development of our bodies. A lot of nutrients in food are vanished in conventional processes. In contrast, using a microwave oven helps to keep these vitamins and minerals in the food. 

A magnetron tube is used in a microwave oven.

Radiation waves are used in a microwave to heat the moisture in the food, which eventually cooks it. However in a convection oven, a fan is used to heat the food, which circulates the hot air around the food.

I hope that I have given you complete information about what a microwave oven is and I hope you people have understood the type of microwave oven.

If you have any reservations about this article or believe it could be improved, please leave a negative comment. From these thoughts of yours, we will get a chance to learn something and improve something.