Materials that absorb light without reemission and thus allow no light through them

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BlackTom AI · Accepted Answer

To tackle the question, I will lay out each option and assess its truth value given the prompt about materials that absorb light without reemission and thus allow no light through them.
Option 1: 'neither' — This would claim that neither of the other statements applies. Since the prompt specifies materials that absorb light without reemission and block light transmission, some standard descriptors of such materials do apply (they can be opaque and can convert absorbed light to internal energy). Declaring that neither of the characteristics is true would be inconsistent with the described behavior, making this option dubious.
Option 2: 'are opaque.' — Opaque materials do not transmit light; if they also absorb rather than reemit, they would block light from passing through. Given the phrase in the question about absorbing without reemission and allowing no light through, 'opaque' aligns well with the described property, so this statement is consistent with the concept.
Option 3: 'turn light incident upon them into reflected light or internal energy' — This statement splits into two outcomes: reflection or internal energy conversion. If a material absorbs light without reemission, the energy is typically converted to internal energy (heating, electronic excitation, etc.). Reflection would be a separate process and would imply not fully absorbing. However, the phrase 'or internal energy' covers the absorption pathway, making this statement largely compatible with the description, though it might overstate the necessity of reflection being an option. Overall, it captures the internal-energy route and does not contradict the no-transmission condition.
Option 4: 'both' — This option asserts that both of the previous statements (options 2 and 3) are true. If we accept that a material can be opaque and that absorbing light without reemission converts energy to internal energy (with no transmission), then both properties can hold simultaneously for such materials. This makes option 4 coherent with the stated scenario.
Overall, the reasoning aligns with the idea that a material described as absorbing light without reemission and not transmitting any light would be opaque and would convert energy to internal energy rather than reemitting or transmitting. The nuance about reflection in option 3 does not violate the core description, since the emphasis is on absorption and lack of transmission, and internal-energy conversion is a direct consequence of absorption. Therefore, option 4 (the combination of the two true statements) coherently represents the intended concept.

Physics Honors-Henrikson Unit 9 test part 1

Materials that absorb light without reemission and thus allow no light through them

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