In a meter bridge circuit, resistance in the left hand gap is
2Ω and an unknown resistance X is in the right hand gap as shown in Figure. The null point is found to be
40cm from the left end of the wire. What resistance should be connected to X so that the new null point is
50cm from the left end of the wire?
![675334_4cf0d97a235a468ab529e600d80a123b.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/675334_4cf0d97a235a468ab529e600d80a123b.png)