Answer: Option D

In this this question, the displacement-time graphs are given, which are different from displacement-distance graphs. In the...

Take note that the question is looking for specific latent heat of vaporisation during boiling. Hence information of mass m1 before...

Solutions: Option B As lamp X is thicker and shorter , these two factors make the resistance of X lower than Y . Recall: Length...

Answer: Option B Since water will naturally reach 40m high from the bottom of the apartment, you only need to pump the water up by a...

Answer: Option D Key concept here is Newton’s 3rd Law. Action equals reaction. Both trolleys are connected by the spring, hence the...