Infrared waves are produced by hot bodies and molecules on account of vibrations in atoms and molecules. their wavelength range from 1 mm to 700 nm. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
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Radio waves are produced by the acclerated motion of charges in conduction wires. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
(i) Microwaves, 10⁸ Hz to 10¹¹ Hz (ii) Ulraviolet rays, 7 × 10¹⁴ Hz to 5 × 10¹⁷ Hz. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Welders wear special glass goggles or face masks with glass windows to protect their eyes from large amout of ultraviolet rays produced by welding arcs. Frequency range of ultraviolet radition is from 7 × 10¹⁴ Hz to 5 × 10¹⁷ ...
X-rays. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.