Three strings of the same of the same length are subjected to equal tension, but are found to give notes with a frequency ratio 2:3:4. The tensions of the first two are altered equally until the first is in tune with the third. How much the length of the second be altered to make it in tune with the third?

Two strings of the same material and the same area of cross-section are used in an wxperiment. One is loaded with 12 kg and the other with 3 kg The fundamental fequency of the first string is equal to the first overtone of the second string. If the length of the second string is 100 cm, then the length of the first string is

Two numbers are 50% and 75% lesser than a third number.By how much percent is the second number to be enhanced to make it equal to the first number?

Two wires whose lengths are in ratio 3:2 are stretched with equal tension and give equal frequency . If the radii of the wires are in the ratio 3:2, then the ratio of densities of the wires is

A string vibrates with a frequency of 200Hz. Its length iss doubled and its tension is altered till it begins to vibrate with a frequency of 300Hz. What is the ratio of new tension to the original tension ?

Two steel wires of equal volume are stretched with the same tension. If the lengths of the wires are in the ratio 1:2 the ratio of their extensions will be

Two tuning forks vibrate with the same amplitude but the frequency of the first is double the frequency of the second. Which fork produces more intense sound in air ?

The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is: