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Why does the Photoelectric Effect lead to the conclusion that classical physics cannot be all of physics?

The photoelectric effect is the emission of electrons on a charged zinc plate, when UV light is shone on it, but not low energy visible light. This phenomena is caused by the quantisation of light. Classical...
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Answered by Benjamin O. • Physics tutor
6883 Views

Explain the unusually high boiling point of HF

Due to the high electronegativity of flourine hydrogen bonds can be formed between HF molecules. - Hydrogen bonds require more energy to break that London Forces. - The other halogens are not as electronegat...
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Answered by Chloe G. • Chemistry tutor
31930 Views

How would I approach a translation in the exam?

-read the passage carefully, identifying any tricky/unknown vocabulary and grammatical points (5 mins) -write a draft translation, leaving gaps for parts you're unsure about (10 mins) -go back to the blanks,...
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Answered by Emily B. • Spanish tutor
2869 Views

What is the difference between linearly, directly and inversely proportional relationships?

A relationship is a way of describing how one variable can affect another. If a relationship is linear, then a change in one variable will cause a change in another variable by a fixed amount. An example of ...
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Answered by Maxwell O. • Physics tutor
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How accurate is it to suggest that the Treaty of Versailles was mainly responsible for the political and economic instability in Germany in the years 1919-23?

The first step in answering this question is to ensure that you understand the contents of the treaty and the subsequent impact on instability. For example how the huge war reparation payments were devastati...
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Answered by Daniel A. • History tutor
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