Class 12 Exam > Class 12 Questions > Waves on top of spectrum area)infrared wavesb...
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Waves on top of spectrum are
- a)infrared waves
- b)gamma rays
- c)x-rays
- d)ultraviolet rays
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Waves on top of spectrum area)infrared wavesb)gamma raysc)x-raysd)ultr...
The correct answer is b.
Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.
Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.
Visible: Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.
Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.
X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.
Gamma ray: Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.
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Waves on top of spectrum area)infrared wavesb)gamma raysc)x-raysd)ultr...
Waves on top of the spectrum area:
In the electromagnetic spectrum, different types of waves are arranged in order of their increasing frequencies and decreasing wavelengths. The waves on top of the spectrum area have the highest frequencies and shortest wavelengths. Let's discuss each option and understand why option 'A' - infrared waves are the correct answer.
Infrared waves:
- Infrared waves have longer wavelengths and lower frequencies than visible light.
- They are commonly known as heat waves as they are emitted by warm objects and can be felt as heat.
- Infrared waves have various applications, such as thermal imaging, remote controls, and heat therapy.
- However, they are not as energetic as the waves that lie above them in the spectrum.
Gamma rays:
- Gamma rays have the highest frequencies and shortest wavelengths in the electromagnetic spectrum.
- They are produced by nuclear reactions, such as radioactive decay or nuclear explosions.
- Gamma rays are highly energetic and can penetrate through most materials, making them useful in medical imaging and radiation therapy.
- However, they have much higher frequencies and shorter wavelengths than infrared waves, so they are not on top of the spectrum area.
X-rays:
- X-rays have shorter wavelengths and higher frequencies than visible light.
- They are produced by accelerating charged particles or by atomic transitions.
- X-rays are commonly used in medical imaging, airport security scanners, and industrial inspections.
- While they have higher frequencies than infrared waves, they are still not on top of the spectrum area.
Ultraviolet rays:
- Ultraviolet rays have shorter wavelengths and higher frequencies than visible light.
- They are emitted by the Sun and are responsible for causing sunburn and tanning.
- Ultraviolet rays have various applications, including sterilization, fluorescence, and forensic investigations.
- Although they have higher frequencies than infrared waves, they are not on top of the spectrum area.
Conclusion:
In summary, the waves on top of the spectrum area are the ones with the highest frequencies and shortest wavelengths. Among the given options, only infrared waves have longer wavelengths and lower frequencies than the other types of waves. Therefore, option 'A' - infrared waves is the correct answer.
In the electromagnetic spectrum, different types of waves are arranged in order of their increasing frequencies and decreasing wavelengths. The waves on top of the spectrum area have the highest frequencies and shortest wavelengths. Let's discuss each option and understand why option 'A' - infrared waves are the correct answer.
Infrared waves:
- Infrared waves have longer wavelengths and lower frequencies than visible light.
- They are commonly known as heat waves as they are emitted by warm objects and can be felt as heat.
- Infrared waves have various applications, such as thermal imaging, remote controls, and heat therapy.
- However, they are not as energetic as the waves that lie above them in the spectrum.
Gamma rays:
- Gamma rays have the highest frequencies and shortest wavelengths in the electromagnetic spectrum.
- They are produced by nuclear reactions, such as radioactive decay or nuclear explosions.
- Gamma rays are highly energetic and can penetrate through most materials, making them useful in medical imaging and radiation therapy.
- However, they have much higher frequencies and shorter wavelengths than infrared waves, so they are not on top of the spectrum area.
X-rays:
- X-rays have shorter wavelengths and higher frequencies than visible light.
- They are produced by accelerating charged particles or by atomic transitions.
- X-rays are commonly used in medical imaging, airport security scanners, and industrial inspections.
- While they have higher frequencies than infrared waves, they are still not on top of the spectrum area.
Ultraviolet rays:
- Ultraviolet rays have shorter wavelengths and higher frequencies than visible light.
- They are emitted by the Sun and are responsible for causing sunburn and tanning.
- Ultraviolet rays have various applications, including sterilization, fluorescence, and forensic investigations.
- Although they have higher frequencies than infrared waves, they are not on top of the spectrum area.
Conclusion:
In summary, the waves on top of the spectrum area are the ones with the highest frequencies and shortest wavelengths. Among the given options, only infrared waves have longer wavelengths and lower frequencies than the other types of waves. Therefore, option 'A' - infrared waves is the correct answer.
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