Resistances in the two gaps of a meter bridge are l0 ohm and 30 ohm, respectively. If the resistances are interchanged the balance point shifts by
33.3 cm
66.67 cm
25 cm
50 cm
S= 100−ll . RInitially, 30 = 100−ll × 10 ⇒ l=25 cmFinally, 10 = 100−ll × 30 ⇒ l=75 cm
So, shift = 50 cm.