Before 1896, many scientist concluded that like he’s not pass through black paper. In 1896, Henri becquerel observed that uranium salts could cause a plate covered by black paper to react as if light had reached it. How did this observation affect conclusions about light passing through black paper?
My answer: scientists stood behind the earlier conclusion that black paper blocks light because it was already and accepted conclusion
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The answer is:
Scientists had to revise their earlier conclusion because evidence from Becquerel did not support the original conclusion.
Your answer is partially correct. The observation made by Henri Becquerel in 1896 actually challenged the earlier conclusion that black paper completely blocks light. It showed that uranium salts could cause a plate covered by black paper to react as if light had reached it. This observation suggested that there might be some other form of energy, besides visible light, that could pass through black paper and produce similar effects. Therefore, scientists had to reconsider their conclusions about light passing through black paper and explore the possibility of other types of energy being involved.
Your answer is partially correct. Before Henri Becquerel's observation in 1896, many scientists had concluded that light cannot pass through black paper based on previous experiments. This conclusion was widely accepted because it aligned with the understanding of light and its interaction with objects at that time.
However, Becquerel's observation that uranium salts caused a plate covered by black paper to react as if light had reached it introduced a new perspective. This finding challenged the previously accepted notion that black paper completely blocks light. Instead, it suggested that there might be other forms of radiation, such as radioactivity, that could penetrate black paper and cause the reaction.
Becquerel's discovery ultimately led to a significant shift in scientific understanding and investigations into various forms of radiation beyond visible light. It opened up new avenues for research and revealed that light is just one subset of the broader electromagnetic spectrum.
observing uranium's effect has nothing to do with the effects of light.
You are correct, though, that it did not change the fact that black paper blocks light.