Forms of Radiation

Get forms of radiation reviews and study guides here. Learn about forms of radiation or brush up on your skills. Thorough explanations and practice examples will help you review physics.

Study Guides

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  • 1.

    EM Fields Help

    Introduction Isaac Newton believed that visible light is composed of tiny particles, or corpuscles . Today we recognize these particles as photons. However, light is more complex than can be represented by the particle theory. It has wave-like ...

    Source: McGraw-Hill Professional
  • 2.

    ELF Fields Help

    Introduction Many electrical and electronic devices produce EM fields. Some of these fields have wavelengths much longer than standard broadcast and communications radio signals. The fields have extremely low frequencies (ELFs); this is how the term ...

    Source: McGraw-Hill Professional
  • 3.

    Rf Waves Help

    Introduction An EM disturbance is called a radio-frequency (rf) wave if its wavelength falls within the range of 100 km to 1 mm. This is a frequency range of 3 kHz to 3000 GHz. Formal RF Band Designators

    Source: McGraw-Hill Professional
  • 4.

    Beyond the Radio Spectrum Help

    Introduction The shortest rf waves measure approximately 1 mm; this corresponds to a frequency of 300 GHz. As the wavelength becomes shorter than this, we encounter the IR, visible, UV, x-ray, and gamma-ray spectra in that order.

    Source: McGraw-Hill Professional
  • 5.

    Radioactivity Help

    Introduction The nuclei of most familiar substances are stable. They retain their identities and remain unchanged indefinitely. However, some atomic nuclei change with time; they are unstable. As unstable atomic nuclei disintegrate, they emit high-energy ...

    Source: McGraw-Hill Professional
  • 6.

    Forms of Radiation Practice Test

    Review the following concepts if needed: EM Fields Help

    Source: McGraw-Hill Professional
  • 7.

    Decay and Half-life Help

    Decay and Half-Life Radioactive substances gradually lose “potency” as time passes. Unstable nuclei degenerate one by one. Sometimes an unstable nucleus decays into a stable one in a single event. In other cases, an unstable nucleus changes into ...

    Source: McGraw-Hill Professional
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