The total length of a sonometer wire between fixed ends is 110 cm. Two bridges are placed to divide the length of wire in ratio 6 : 3 : 2. The tension in the wire is 400 N and the mass per unit length is 0.01 kg/m. What is the minimum common frequency with which three parts can vibrate ?
← JEE Main 2014 · 19 Apr · Shift 1
PhysicsSingle correct+4 / -1Question 15 of 90
JEE Main 2014 · 19 Apr · Shift 1, Physics question 15
Answer and worked solution
Official answer: B
m/s. The segments are 60, 30 and 20 cm, with fundamentals :
The smallest common frequency (their LCM) is 1000 Hz.