Figure 2 shows a uniform bar in equilibrium.

When water is added into the beakers A and B until the weights are submerged, it is observed that the bar
tips towards B. Explain the observation.

Answer:

-The weight of side A has a bigger volume when water is added, it experiences a greater upthrust and therefore tends to float unlike side B

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The control grids in a Cathode Ray Oscilloscope (CRO) is used to control the brightness of the beam on the screen. How is this achieved? (Answered)
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Figure 2 shows a uniform bar in equilibrium. When water is added into the beakers A and B until the weights are submerged, it is observed that the bar tips towards B. Explain the observation.

Figure 2 shows a uniform bar in equilibrium.

When water is added into the beakers A and B until the weights are submerged, it is observed that the bar
tips towards B. Explain the observation.