In a meter bridge,as shown in the figure,it is given that resistance $Y = 12.5 \, \Omega$ and the balance point is obtained at a distance $l_1 = 39.5 \, cm$ from end $A$ (by jockey $J$). After interchanging the resistances $X$ and $Y$,a new balance point is found at a distance $l_2$ from end $A$. What are the values of $X$ and $l_2$?

• A
  $19.15 \, \Omega$ and $39.5 \, cm$
• B
  $8.16 \, \Omega$ and $60.5 \, cm$
• C
  $19.15 \, \Omega$ and $60.5 \, cm$
• D
  $8.16 \, \Omega$ and $39.5 \, cm$