In a meter bridge experiment, null point is obtained at `20 cm` from one end of the wire when resistance `X` is balanced against another resistance `Y`. If `X lt Y`, then the new position of the null point from the same end, if one decides to balance a resistance of `4 X` against `Y` will be at.A. `50 cm`B. `80 cm`C. `40 cm`D. `70 cm`

In a meter bridge experiment, null point is obtained at `20 cm` from o

1.	In a meter bridge experiment, null point is obtained at `20 cm` from one end of the wire when resistance `X` is balanced against another resistance `Y`. If `X lt Y`, then the new position of the null point from the same end, if one decides to balance a resistance of `4 X` against `Y` will be at.A. `50 cm`B. `80 cm`C. `40 cm`D. `70 cm`
Answer» Correct Answer - A `x/20=y/80 implies 4x=y` `implies` New position of null point will be at the mid point.

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