The ultraviolet (UV) radiation from sunlight, specifically UV-B (280–315 nm) and UV-C (100–280 nm), is absorbed by the ozone layer. This absorption protects life on Earth by reducing harmful radiation reaching the surface. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/pRead more
The ultraviolet (UV) radiation from sunlight, specifically UV-B (280–315 nm) and UV-C (100–280 nm), is absorbed by the ozone layer. This absorption protects life on Earth by reducing harmful radiation reaching the surface.
Yes, electromagnetic waves carry both energy and momentum. They transfer energy through their electric and magnetic fields and exert pressure (radiation pressure) when interacting with matter, demonstrating their momentum-carrying capability. For more visit here: https://www.tiwariacademy.com/ncert-Read more
Yes, electromagnetic waves carry both energy and momentum. They transfer energy through their electric and magnetic fields and exert pressure (radiation pressure) when interacting with matter, demonstrating their momentum-carrying capability.
A wave with a frequency of 5 × 10¹⁹ Hz belongs to the X-rays region of the electromagnetic spectrum, characterized by extremely high energy and frequency, used in medical treatments and scientific research. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8Read more
A wave with a frequency of 5 × 10¹⁹ Hz belongs to the X-rays region of the electromagnetic spectrum, characterized by extremely high energy and frequency, used in medical treatments and scientific research.
The descending order of wavelengths for the given electromagnetic radiations is: Radio waves > Infrared light > Blue light > X-rays. Radio waves have the longest wavelengths, while X-rays have the shortest. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/Read more
The descending order of wavelengths for the given electromagnetic radiations is:
Radio waves > Infrared light > Blue light > X-rays.
Radio waves have the longest wavelengths, while X-rays have the shortest.
(i) Radar uses microwaves, part of the electromagnetic spectrum with frequencies ranging from 1 GHz to 300 GHz. (ii) Eye surgery employs ultraviolet (UV) light, specifically excimer lasers, with frequencies ranging from 750 THz to 30,000 THz. For more visit here: https://www.tiwariacademy.com/ncert-Read more
(i) Radar uses microwaves, part of the electromagnetic spectrum with frequencies ranging from 1 GHz to 300 GHz.
(ii) Eye surgery employs ultraviolet (UV) light, specifically excimer lasers, with frequencies ranging from 750 THz to 30,000 THz.
X-rays are produced by bombarding a metal target with high-speed electrons. They belong to the electromagnetic spectrum with frequencies ranging from 30 PHz to 30 EHz and are used in medical imaging and material analysis. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/phRead more
X-rays are produced by bombarding a metal target with high-speed electrons. They belong to the electromagnetic spectrum with frequencies ranging from 30 PHz to 30 EHz and are used in medical imaging and material analysis.
(i) Microwaves are suitable for radar systems used in aircraft navigation, with frequencies ranging from 1 GHz to 300 GHz. (ii) Gamma rays are used for treating cancer tumors, with frequencies above 30 EHz. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8Read more
(i) Microwaves are suitable for radar systems used in aircraft navigation, with frequencies ranging from 1 GHz to 300 GHz.
(ii) Gamma rays are used for treating cancer tumors, with frequencies above 30 EHz.
Microwaves are suitable for radar systems in aircraft navigation due to their short wavelength, allowing precise detection of objects, high penetration through clouds and fog, and efficient reflection from metallic surfaces for accurate location and distance measurement. For more visit here: https:/Read more
Microwaves are suitable for radar systems in aircraft navigation due to their short wavelength, allowing precise detection of objects, high penetration through clouds and fog, and efficient reflection from metallic surfaces for accurate location and distance measurement.
(i) A wave with a frequency of 3 × 10¹⁹ Hz belongs to the X-ray region of the electromagnetic spectrum. (ii) A wave with 5 × 10¹¹ Hz frequency belongs to the microwave region. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
(i) A wave with a frequency of 3 × 10¹⁹ Hz belongs to the X-ray region of the electromagnetic spectrum.
(ii) A wave with 5 × 10¹¹ Hz frequency belongs to the microwave region.
The orientation of a portable radio is important because the radio's antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity. For more visit here: https://www.tiwariacademRead more
The orientation of a portable radio is important because the radio’s antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity.
Which part of electromagnetic spectrum is absorbed from sunlight by ozone layae?
The ultraviolet (UV) radiation from sunlight, specifically UV-B (280–315 nm) and UV-C (100–280 nm), is absorbed by the ozone layer. This absorption protects life on Earth by reducing harmful radiation reaching the surface. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/pRead more
The ultraviolet (UV) radiation from sunlight, specifically UV-B (280–315 nm) and UV-C (100–280 nm), is absorbed by the ozone layer. This absorption protects life on Earth by reducing harmful radiation reaching the surface.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Do electromagnetic waves carry energy and momentum?
Yes, electromagnetic waves carry both energy and momentum. They transfer energy through their electric and magnetic fields and exert pressure (radiation pressure) when interacting with matter, demonstrating their momentum-carrying capability. For more visit here: https://www.tiwariacademy.com/ncert-Read more
Yes, electromagnetic waves carry both energy and momentum. They transfer energy through their electric and magnetic fields and exert pressure (radiation pressure) when interacting with matter, demonstrating their momentum-carrying capability.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
To which part of the electromegnetic spectrum does the wave of frequency 5 × 10¹⁹ Hz belong?
A wave with a frequency of 5 × 10¹⁹ Hz belongs to the X-rays region of the electromagnetic spectrum, characterized by extremely high energy and frequency, used in medical treatments and scientific research. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8Read more
A wave with a frequency of 5 × 10¹⁹ Hz belongs to the X-rays region of the electromagnetic spectrum, characterized by extremely high energy and frequency, used in medical treatments and scientific research.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Arrange the given electromagnetic radiations in the descending order of wavelengths: X-rays, rsdio waves, blue light, infrared light.
The descending order of wavelengths for the given electromagnetic radiations is: Radio waves > Infrared light > Blue light > X-rays. Radio waves have the longest wavelengths, while X-rays have the shortest. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/Read more
The descending order of wavelengths for the given electromagnetic radiations is:
Radio waves > Infrared light > Blue light > X-rays.
Radio waves have the longest wavelengths, while X-rays have the shortest.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Identify the part of the electromagnetic spectrum used i (i) radar and (ii) eye surgery. Write their frequency range.
(i) Radar uses microwaves, part of the electromagnetic spectrum with frequencies ranging from 1 GHz to 300 GHz. (ii) Eye surgery employs ultraviolet (UV) light, specifically excimer lasers, with frequencies ranging from 750 THz to 30,000 THz. For more visit here: https://www.tiwariacademy.com/ncert-Read more
(i) Radar uses microwaves, part of the electromagnetic spectrum with frequencies ranging from 1 GHz to 300 GHz.
(ii) Eye surgery employs ultraviolet (UV) light, specifically excimer lasers, with frequencies ranging from 750 THz to 30,000 THz.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Identify the part of the electromagnetic spectrum which is produces by bombarding a metal target by high speed electrons.
X-rays are produced by bombarding a metal target with high-speed electrons. They belong to the electromagnetic spectrum with frequencies ranging from 30 PHz to 30 EHz and are used in medical imaging and material analysis. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/phRead more
X-rays are produced by bombarding a metal target with high-speed electrons. They belong to the electromagnetic spectrum with frequencies ranging from 30 PHz to 30 EHz and are used in medical imaging and material analysis.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Name the part of electromagnetic spectrum which is suitable for (i) radar systems used in aircraft navigation. (ii) treatment of cancer tumours.
(i) Microwaves are suitable for radar systems used in aircraft navigation, with frequencies ranging from 1 GHz to 300 GHz. (ii) Gamma rays are used for treating cancer tumors, with frequencies above 30 EHz. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8Read more
(i) Microwaves are suitable for radar systems used in aircraft navigation, with frequencies ranging from 1 GHz to 300 GHz.
(ii) Gamma rays are used for treating cancer tumors, with frequencies above 30 EHz.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Why are microwaves considered suitable for radar system used in aircraft navigation?
Microwaves are suitable for radar systems in aircraft navigation due to their short wavelength, allowing precise detection of objects, high penetration through clouds and fog, and efficient reflection from metallic surfaces for accurate location and distance measurement. For more visit here: https:/Read more
Microwaves are suitable for radar systems in aircraft navigation due to their short wavelength, allowing precise detection of objects, high penetration through clouds and fog, and efficient reflection from metallic surfaces for accurate location and distance measurement.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
To which part of the electromegnetic spectrum does the wave of frequency (i) 3 × 10¹⁹ Hz, (ii) 5 × 10¹¹ Hz belong?
(i) A wave with a frequency of 3 × 10¹⁹ Hz belongs to the X-ray region of the electromagnetic spectrum. (ii) A wave with 5 × 10¹¹ Hz frequency belongs to the microwave region. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
(i) A wave with a frequency of 3 × 10¹⁹ Hz belongs to the X-ray region of the electromagnetic spectrum.
(ii) A wave with 5 × 10¹¹ Hz frequency belongs to the microwave region.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Why is orientation of the partable radio with respect to broadcasting station important?
The orientation of a portable radio is important because the radio's antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity. For more visit here: https://www.tiwariacademRead more
The orientation of a portable radio is important because the radio’s antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/