MCQ
Dispersive power depends upon
- AThe shape of prism
- ✓Material of prism
- CAngle of prism
- DHeight of the prism
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$(I)$ move $A$ to the right along $X$-axis closer to $B$
$(II)$ move $A$ to the left along $X$-axis away from $B$
$(III)$ as viewed from above, rotate $A$ clockwise about $Y$-axis
$(IV)$ as viewed from above, rotate $A$ anti-clockwise about $Y$-axis
Which of the actions will induce a current in $A$ only in the direction shown?