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When the power of the light is halved, there are half as many photons per unit time. Therefore, the number of photoelectrons emitted is also halved. The maximum kinetic energy of the photoelectrons depend...

First of all, identify how many digits are recurring in the decimal, in this case it's two: 0.13636...Let x = 0.1363636...Since there are two digits recurring we use 100x = 13.6363...

An ageing population refers to the increase in the average age of citizens, as citizens tend to live longer, and the subsequent increase in numbers of elderly people is not balanced by an increase in the ...

When writing an exam essay the most important thing is not to rush in. Read the question carefully and make sure you understand its nuances. Take a few minutes to think of what points you can raise in res...

Conformity is a change in behaviour due to the presence of others: the individual starts to exhibit the same behaviour or opinions as others. It is more likely to occur with a bigger percentage of a group...