Answer: Option A View the explanation Click here to view the basic concepts of converging lens https://www.sgphysicstuition.com/post/converging-lens-overview

Answers: Option C View the explanation

Answer: Option C View the explanation

Answer: Option D View the explanation

Answer: Option C View the explanation

Answer: Option C View explanation

Answer: Option A View the explanation

Answer: Option A View the explanation

Answer: Option B View the explanation

Answer: Option D Refer to the video explanation

There are factors that affect resistance of the filament (conductor): length cross-sectional area Resistivity For our syllabus, brightness of the bulb depends on power. The higher the power, the brighter the bulb. e.g. a 100 W bulb is brighter than a 60 W bulb, View the video to understand the concepts better Video

If you consider the composite rod as a whole, the centre of gravity CG is at the pivot. The line of action of the weight which acts from the CG passes through the pivot at P, there is no perpendicular distance, hence no moment created. Thus the rod is balanced at P. But to solve this question, you need to consider the weight of plastic and weight of wood separately in order to find the ratio and apply the Principle of Moments to solve it.

Answer: Option C View the video for explanation

Answer: Option A View the video for explanation

Answer: Option D View the video for explanation

Answer: Option A Many have the misconception that as the astronaut and camera are floating and weightless, there is no gravitational force acting on them. Actually both are inside the gravitational field of the Earth, and there is gravitational field strength, hence there is gravitational force acting on them towards the Earth. But as together with the station, they are all ‘free falling’, hence no normal contact force on the astronaut and camera, hence give the feeling of we

Answer: Option A

Liquid pressure P = pgh P is pressure in pascal (Pa) p is the density of the liquid (kg/m3) g is gravitational field strength (10 N/kg) h...

C is the heat capacity of a body. It is the amount of internal energy transferred to a body per unit change in temperature. (Or for 1...

Answer: Option D Note that the reading shown on the detector (536 counts per second) includes the sum of count rate from the...