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Where is Radio Waves located in EM Spectrum?

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Where is Radio Waves located in EM Spectrum?

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Radio waves are at the low-frequency end of the electromagnetic spectrum. They have the longest wavelengths, much longer than microwaves

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They move in slow, long, stretched waves Since they have little energy, they are safe and ideal for transmitting messages such as songs on the radio or phone calls to friends.

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Wavelength - very long from 1 meter to 50 meters

Frequency - Very low usually from about 30 Hz to 300 GHz.

Key Fact - They’re used mainly for communication because they can travel long distances and move through walls buildings and other objects.

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Listening to the radio - When you turn on your radio, you're catching radio waves that carry music.

Talking on cell phones - Your phone sends your voice using radio waves so someone else can hear you.

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Yes, they’re safe and very helpful Radio waves don't have enough energy to harm our bodies.

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Where is Microwaves located in EM Spectrum

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Where is Microwaves located in EM Spectrum

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Microwaves are located between radio waves and infrared waves on the electromagnetic spectrum. They are shorter in wavelength and faster in frequency than radio waves, but longer and slower than infrared waves.

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Microwaves have medium wavelengths and medium frequencies, which means they are stronger than radio waves but weaker than infared waves. they are good for heating food

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Wavelength - from 1 millimeter to 1 meter

Frequency - About 300 MHz to 300 GHz

Key Facts - Microwaves can pass through clouds, smoke, and light rain, which is why they’re used for cooking in microwave ovens and sending Wi-Fi signals for internet connections

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Yes they are safe and helpful we use them to heat food

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Infrared waves located just beyond visible light on the electromagnetic spectrum, right after the microwaves.

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Infrared waves have medium energy. They’re stronger than microwaves but weaker than visible light. This balance makes them perfect for heating and sensing.

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Wavelength - from about 700 nanometers to 1 millimeter

Frequency - between 300 GHz and 430 THz

Key Facts - infrared waves carry heat, which you can feel when standing in sunlight

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TV Remotes - When you press buttons on your remote, it sends invisible infrared signals to control the TV.

Thermal Cameras -They use infrared to detect heat. Helps people to see in the dark

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Basically they are safe but if you stand under a source of infrared waves for a long time you can get a burn

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Visible light sits in the middle of the electromagnetic spectrum, beyond infrared waves and behind ultraviolet waves .

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Visible light has medium wavelengths and medium frequencies, making it stronger than infrared waves but weaker than ultraviolet waves

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Wavelength - Range from 400 nanometers to 700 nanometers

Frequency: From about 430 THz to 770 THz .

Key Fact - Different wavelengths of visible light are seen as different color - red has the longest wavelength, violet has the shortest.

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Lighting - Visible light from the sun or light bulbs lets us see everything around us.

Photography - Cameras capture visible light to create pictures.

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Visible light is safe, it helps us see, take photos.

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Ultraviolet light is in the middle of the table after visible light and before x-ray

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Ultraviolet waves have an average energy, their energy is weaker than that of x-ray but stronger than that of visible light.

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Wavelength - range from 100nm to 400nm

Frequency - from 800 terahertz to 30 petahertz

Key fact - some insects, like bumblebees, can see them, using them to find pollen on flowers, while humans cannot see UV light.

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Disinfection - UV light is used to disinfect scalpels and other items in surgery

Water purification - people use UV light to kill all the germs in the water so that the water becomes safe to drink

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Ultraviolet light can be safe as it promotes the production of vitamin D in the body. If you stand under such a source for a long time, you can harm the skin and eyes.

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X-ray is at the end of the electromagnetic spectrum, behind it is UV light, and in front of it are gamma rays.

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X-ray has high energy and high frequency, because of this it has very high energy, more than UV light

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Wavelength - from 0.01 to 10 nanometers

Frequency - is roughly 30 petahertz to 30 exahertz.

Key Fact - They were called "X-rays" because their nature was unknown at the time, and "X" is often used to denote the unknown.

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Roentgen is when an X-ray is passed through your body which shows your organs.

Airports - X-rays are used in airport and other security systems to detect contraband items like weapons and explosives.

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X-rays are unsafe because they have a lot of energy. If you overdo it with the dose of X-ray, your hair will start to fall out and you will also get burns.

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Gamma rays are at the end of the electromagnetic spectrum, after X-rays.

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They have the shortest wavelength and the highest frequency and energy.

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Wavelength - less than 10 picometers (10^-11 meters

Frequency - 30 exahertz

Key fact - Gamma rays are so powerful that they can pass through most materials

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Medicine - gamma rays are used to kill cancer cells , with their help cure a person from cancer

Engine- Engineers use gamma rays to check materials like metal for hidden cracks, ensuring buildings, planes, and other structures are safe and reliable.

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Gamma rays can be dangerous because of their high energy, which penetrates many materials and can damage living cells. However, when used correctly, they are safe and help treat diseases such as cancer