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 Spectrum 30 Flashcards |
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In the visible spectrum, which color of light is deviated the most by a prism? |
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 Violet (λ = 4000 Å) is deviated the most. |
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Fill in the blank: The deviation of light in a prism increases with the decrease in the ___ of light. |
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 Wavelength |
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The total angle of deviation δ produced by a triangular prism is determined by which three factors? |
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The angle of incidence at the first surface, the angle of the prism (A), and the refractive index of the material of the prism (μ). |
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Riddle: I bend light and create colors bright, through me red will bend less than violet's flight. What am I? |
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 A triangular prism. |
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What is the phenomenon called when white light is split into its constituent colors by a prism? |
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 Dispersion |
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Fill in the blank: The order of colors in the spectrum produced by a prism can be remembered as ___. |
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 VIBGYOR |
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What role does the second surface of the prism play in the dispersion of light? |
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Only refraction occurs at the second surface, causing different colors to be deviated through different angles, further separating them. |
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How do two prisms in combination reproduce white light after dispersion? |
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The first prism disperses white light into its colors, and the second prism recombines these colors to reproduce white light. |
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Fill in the blank: The colors in the spectrum are arranged as Violet, Indigo, Blue, Green, Yellow, Orange, and ___. |
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 Red |
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What causes the dispersion of light when it passes through a prism? |
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The change in speed of light with wavelength (or frequency) causes different colors to be deviated at different angles. |
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The visible spectrum is located between which two colors in the electromagnetic spectrum? |
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 The visible spectrum is located between red and violet colors. |
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True or False: Electromagnetic waves require a material medium for their propagation. |
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 False. Electromagnetic waves do not require any material medium for their propagation. |
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Fill in the blank: The portion of the electromagnetic spectrum just before the violet end is called the ___. |
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Ultraviolet spectrum.
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What types of wave behavior do electromagnetic waves exhibit? |
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 Electromagnetic waves exhibit the properties of reflection and refraction. |
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What is the speed of electromagnetic waves in a vacuum? |
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The speed of electromagnetic waves in a vacuum is 3 × 108 m s−1.
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Completed! Keep practicing to master all of them. |
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