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 A Refer to the video tutorial below for explanation.

The concepts needed to solve such questions Length increases, resistance increases and vice versa. Finding resistors in parallel and in...

Based on individual calculations, the highest effective resistance will only be achieved if the junctions are connected at Q and S.

Solutions: Option B Key concepts: Both balls are free-falling, hence both will experience the same acceleration due to gravity 10 m/s2.

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...

Solutions: Option B Without the current in the river, the time taken for the swimmer to reach Q is 50s. This is based on the vertical...

Solutions: Option B

Answer: Option A

These two questions are actually the same. Q23 is from 2010 Pure Physics P1 while Q11 is from 2014 Sci Physics P1. Take a look at these 2...

Solutions: Option A