MEDIUM
11th ICSE
IMPORTANT
Earn 100

The frequency of a steel wire of a fixed length and diameter at a tension of 576 N is 480 Hz. Calculate the frequency of the wire at a tension of 144 N.

Important Questions on Vibrations of Stretched Strings

EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 3
The mass of a 1 metre wire of steel is 20 g. The wire is stretched under a tension of 800 N. What are the frequencies of its fundamental mode of vibration and the next three higher modes ?
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 4
Two stretched strings give 3 beats per second. The frequency of one of them is 440 Hz. (a) What are possible frequencies of the other string?
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 4
Two stretched strings give 3 beats per second. The frequency of one of them is 440 Hz.(b) What is the possible frequency of the other string, if on increasing the tension of this string the frequency of beats decreases?
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 5
A and B are two wires whose fundamental frequencies are 256 and 382 Hz respectively. How many beats in two seconds will be heard by the third harmonic of A and the second harmonic of B? 
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 6

The frequency of the fundamental tone of 1 metre long wire of a sitar is 256 Hz. At how much distance from the upper end should the wire be pressed to produce a note of frequency 384 Hz?

MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 7
When a wire has a tension of 10 kg-wt, then its fundamental frequency is 256 Hz. (a) At what tension will its frequency become 512 Hz?
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 7
When a wire has a tension of 10 kg-wt, then its fundamental frequency is 256 Hz. (b) If the tension be kept 10 kg-wt then how can the frequency of the wire be changed to 786 Hz?
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 32 - Vibrations of Stretched Strings>NUMERICALS>Q 8
A uniform wire is stretched between two bridges situated at a distance of 1.0 m. The wire is fixed at one end and its other end passes over a pulley and carries a weight of 9 kg. The fundamental frequency of the wire is 750 Hz. (a) Find the speed of sound in the wire. (b) If the weight is reduced to 4 kg, then what will be the speed, wavelength, and frequency?