The ratio of intensities between two coherent sound sources

Asked by admin @ in Physics viewed by 260 People

The ratio of intensities between two coherent sound sources is 4:1. The difference of loudness in db between maximum and minimum intensities when they interfere in space is

Answered by admin @


I1/I2 = 4/1 so a1/a2 = 2/1 so amax/ amin = 2+1/2-1 = 3/1 so Imax/ Imin= 9/1


Now loudness L = 10 log(I/I0)


So difference of loudness = L1-L2 = 10 log (9I/I) = 10 log9 = 20 log3


Similar Questions

Two sources of sound placed close to each other

Asked by admin @ in Physics viewed by 247 persons

Two sources of sound placed close to each other are emitting progressive waves given by y₁ = 4 sin 600 πt and y₂ = 5 sin 608 πt. An observer …

An interference is observed due to two coherent sources

Asked by admin @ in Physics viewed by 354 persons

An interference is observed due to two coherent sources s1 placed at origin and s2 placed at 0,3 , 0 . Here is the wavelength of the sources. A detector …

Ratio of electrostatic force to gravitational force between two electrons

Asked by admin @ in Physics viewed by 357 persons

The ratio of electrostatic force between two electrons to gravitation force between them is of the orderA) 10C) 10^3B)1D) 10^42​

Two words that sound the same but have different meanings

Asked by admin @ in English viewed by 300 persons

If two words sound exactly alike but have different spellings and meanings, what type of words might they be? a. homophones b. homographs c. both homographs and homophones d. neither …

Describes the difference between two sounds having the same pitch

Asked by admin @ in Physics viewed by 397 persons

DO IT FAST 1. What is the difference between sounds that have the same pitch and loudness? A.the standing wave B.the natural frequency C.the sound quality D. the resonance 2.What …

Two numbers are in the ratio 5 3

Asked by admin @ in Math viewed by 419 persons

Solve these- 1)Two numbers are in the ratio 5:3.If they differ by 18,what are the two numbers?2)A number is decreased by 5% of it is 3800.What is the number? …

How to find the ratio of two numbers

Asked by admin @ in Math viewed by 350 persons

How to find the ratio of two numbers

What are the two main sources of food

Asked by admin @ in English viewed by 381 persons

What are the two main sources of food ? Write 4 examples of each.​

Give any four sources of sound in a marketplace

Asked by admin @ in Physics viewed by 375 persons

Four sources of sound in market place

Two examples of formal and informal sources of information

Asked by admin @ in Social Sciences viewed by 296 persons

Two examples of formal and informal sources of information

Name the two life giving sources of fishing community

Asked by admin @ in Economy viewed by 297 persons

Name the two life - giving sources of fishing community

Ratio of intensity of two waves is 25 1

Asked by admin @ in Physics viewed by 294 persons

ratio of intensity of two waves is 25:1.The ratio of maximum and minimum intensities produced by their interference will be​

Two complementary angles are in the ratio 4 5

Asked by admin @ in Math viewed by 311 persons

Two complementary Angles are in the ratio 4 : 5. Find the angles.

Give two practical application of reflection of sound waves

Asked by admin @ in Science viewed by 322 persons

Give two practical applications of reflection of sound waves.

The ratio of speed of sound in nitrogen gas

Asked by admin @ in Physics viewed by 398 persons

The ratio of the speed of sound in nitrogen gas to that in the helium gas at 300 k is?

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Asked by admin @ in Physics viewed by 11074 persons

Hc verma physics class 9 solutions of describing motion

Asked by admin @ in Physics viewed by 2672 persons

How to leave nightmare land answer key

Asked by maham237 @ in Physics viewed by 1599 persons

Base area and stability of some objects with different shapes

Asked by admin @ in Physics viewed by 1533 persons

Which of the following statements about safe lifting are correct

Asked by admin @ in Physics viewed by 1518 persons

Porous water-absorbing mass of fibers

Asked by wiki @ in Physics viewed by 1497 persons

Absorption of water by filter paper is due to

Asked by admin @ in Physics viewed by 1440 persons

A composite wire of uniform diameter 3mm

Asked by admin @ in Physics viewed by 1407 persons

At a distance l 400m from the traffic light

Asked by admin @ in Physics viewed by 1335 persons

A rocket of mass m is launched straight up with thrust f⃗ thrust.

Asked by maham237 @ in Physics viewed by 1317 persons

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ in Physics viewed by 1206 persons

Mind map for light reflection and refraction class 10

Asked by admin @ in Physics viewed by 1148 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ in Physics viewed by 1101 persons

A thief runs at a speed of 10m s

Asked by admin @ in Physics viewed by 1097 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ in Physics viewed by 1082 persons