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What’s the difference between characteristics caused by environmental and genetic factors?

A characteristic that is determined by genetic factors is a feature which is coded for in a person's genetics, inherited from their parents, as opposed to environmental factors which are caused by the condit...
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Answered by Adela B. • Biology tutor
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What is the wavefunction of a particle in an infinite square well?

An infinite square well is a region with constant potential energy (inside the well) surrounded by a region of infinite potential energy (outside the well). Therefore, it is impossible for a particle to be o...
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Answered by Kelvin C. • Physics tutor
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How would you use the Integration Factor method to solve an ordinary first-order linear differential equation?

The word "ordinary" means that there are only two variables, "first-order" means that the highest derivative is the first derivative and "linear" means that the highest power of...
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Which function is ran when an object is instantiated?

The function is called init . This is the constructor, which is used to initiate the attributes of the object and allows arguments to be passed upon instantiation.
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Answered by Kelvin C. • Python tutor
1746 Views

You have a layer of glass with a refractive index of 1.5 and the glass is surrounded by air. A light ray shines into the glass and Total Internal Reflection occurs at the glass-air boundary. What is the critical angle?

This question tests your knowledge of Snell's law, Total Internal Reflection (TIR) and the fact that the refractive index of air is 1 (which should be memorised as it is in the exam). The critical angle is t...
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Answered by Kelvin C. • Physics tutor
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