हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

When two waves of almost equal frequencies n1 and n2 reach at a point simultaneously, what is the time interval between successive maxima? - Physics

Advertisements
Advertisements

प्रश्न

When two waves of almost equal frequencies n1 and n2 reach at a point simultaneously, what is the time interval between successive maxima?

टिप्पणी लिखिए
Advertisements

उत्तर

If two waves of almost equal frequencies interfere, they are producing beats.

Let n1 > n2

Beat frequency `f_"beat"` = n1 – n2

∴ Time periods of beats Tbeats = `1/f_"beat" = 1/(n_1 - n_2)`

This time period will be equal to the time interval between successive maxima.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 15: Waves - Exercises [पृष्ठ ११०]

APPEARS IN

एनसीईआरटी एक्झांप्लर Physics [English] Class 11
अध्याय 15 Waves
Exercises | Q 15.24 | पृष्ठ ११०

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Explain why (or how) A violin note and sitar note may have the same frequency, yet we can distinguish between the two notes,


Doppler effect is not applicable when _______.
(A) source and observer are at rest.
(B) there is a relative motion between source and observer.
(C) both are moving in opposite directions.
(D) both are moving in same direction with different velocities


Apparent frequency of the sound heard by a listener is less than the actual frequency of sound emitted by source. In this case _______.

(A) listener moves towards source

(B) source moves towards listener

(C) listener moves away from the source.

(D) source and listener move towards each other.


A set of 8 tuning forks is arranged in a series of increasing order of frequencies. Each fork gives 4 beats per second with the next one and the frequency of last fork is twice that of the first. Calculate the frequencies of the first and the last fork.


State any four applications of beats.


When the observer moves towards the stationary source with velocity, 'V1', the apparent frequency of the emitted note is 'F1'. When the observer moves away from the source with velocity 'V1', the apparent frequency is 'F2'. If 'V' is the velocity of sound in air and `"F"_1/"F"_2 = 4` then `"V"/"V"_1 = ?`


If two tuning forks A and B are sounded together, they produce 4 beats per second. When A is slightly loaded with wax, they produce 2 beats when sounded again. The frequency of A is 256 Hz. The frequency of B will be ______


A tuning fork 'A' produces 5 beats per second with a tuning fork of frequency 480 Hz. When a little wax is stuck to a prong of fork A, the number of beats heard per second becomes 2. What is the frequency of tuning fork A before the wax is stuck to it?


A set of 25 tuning forks is arranged in order of decreasing frequencies. Each fork produces 3 beats with succeeding one. If the first fork is octave of last, then the frequency of 1st and 15th fork in Hz is ______.


Two tuning forks have frequencies 380 Hz and 384 Hz respectively. When they are sounded together, maximum sound is heard. How long will it take to hear the minimum sound?


A set of 56 tuning forks are arranged in series of increasing frequencies. If each fork gives 4 beats with preceding one and the frequency of the last is twice than than that of first, then frequency of the first fork is ____________.


The frequency of two tuning forks A and B are 1.5% more and 2.5% less than that of the tuning fork C. When A and B are sounded together, 12 beats are produced in 1 second. The frequency of tuning fork C is ______ 


The velocity of sound in a gas in which two wavelengths 4.08m and 4.16m produce 40 beats in 12s, will be ______.


Wire having tension 225 N produces six beats per second when it is tuned with a fork. When tension changes to 256 N, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be ______.


Two tuning forks of frequencies 320 Hz and 340 Hz are sounded together to produce a sound wave. The velocity of sound in air is 326.4 m/s. Calculate the difference in wavelengths of these waves.


If beat frequency is 2 Hz, what is the time interval between success waxings?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×