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  1. Electromagnetic waves carry energy and momentum, shown by: Solar panels: Convert sunlight (energy) into electricity. Radiation pressure: Light exerts pressure on objects, e.g., a light sail in space, propelling spacecraft. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/pRead more

    Electromagnetic waves carry energy and momentum, shown by:

    Solar panels: Convert sunlight (energy) into electricity.
    Radiation pressure: Light exerts pressure on objects, e.g., a light sail in space, propelling spacecraft.

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/

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  2. The frequency of an electromagnetic wave does not change in a material medium, as it depends solely on the source. However, the wave's speed and wavelength decrease due to the medium's permeability (µ) and permittivity (ɛ). For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/Read more

    The frequency of an electromagnetic wave does not change in a material medium, as it depends solely on the source. However, the wave’s speed and wavelength decrease due to the medium’s permeability (µ) and permittivity (ɛ).

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/

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  3. 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:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/

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  4. 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:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/

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  5. 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:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/

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