MCQ
Control rods used in nuclear reactors are, made of
- AStainless steel
- BGraphite
- ✓Cadmium
- DPlutonium
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$(A)$ $v_0^2-2 g h=\frac{1}{2} g R$
$(B)$ $v_0^2-2 g h=\frac{\sqrt{3}}{2} g R$
$(C)$ the centripetal force required at points $x$ and $z$ is zero
$(D)$ the centripetal force required is maximum at points $x$ and $z$

