which of the following are not correct?

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A spring balance reads W1 when a ball is suspended from it. A weighing machine reads W2 when a tank of liquid is kept on it. When the ball is immersed in the liquid, the spring balance reads W3 and the weighing machine reads W4. Then, which of the following are not correct?
08
Oct
A spring balance reads W1 when a ball is suspended from it. A weighing machine reads W2 when a tank of liquid is kept on it. When the ball is immersed in the liquid, the spring balance reads W3 and the weighing machine reads W4. Then, which of the following are not correct? A spring [...]
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Tags: A spring balance reads W1 when a ball is suspended from it. A weighing machine reads W2 when a tank of liquid is kept on it. When the ball is immersed in the liquid , the spring balance reads W3 and the weighing machine reads W4. Then , which of the following are not correct? ,