28/03/2020 General Waves – Types and Properties(Senior Class Physics Study by Topics) 0Comments by Gate Academy Welcome to your General Waves - Types and Properties(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Two waves are propagating with the same amplitude and nearly same frequency in opposite direction, they result in ___BeatsStationary waveResonanceWave packet2. In the animation, what type of wave is shown? TransverseLongitudinalRarefiedRefracted3. A wave frequency of 2Hz and a wavelength of 30 cm. The velocity of the wave is1.5 m/s60.0 m/s0.6 ms6.0 m/s4. Two waves of wavelength 99cm and 100cm both travelling with velocity 396m/s are made to interfere. The number of beats produced by them per second is?82415. As the frequency of a spring wave is increased, the ______Velocity increasesWavelength decreasesWavelength increasesVelocity decreases6. In a transverse wave, the distance between two adjacent crests isone quarter of the wave lengthhalf of the wave lengththe wavelengthtwice the wavelength7. Following two wave trains are approaching each othery1=asin200πt, y2=asin208πt.The number of beats heard per second is?184Zero8. By counting the number of crests that pass in a given amount of time, a person can calculate the VelocityWavelengthFrequencyAmplitude9. Transverse waves can be formed in fluids.FalseTrue10. When a pebble is dropped into a pond of still water, what happens?The pebble movesParticles moveWater movesWaves move11. An organ pipe, open at both ends produce 5 beats per second when vibrated with a source of frequency 200Hz. The second harmonic of the same pipe produces 10 beats per second with a source of frequency 420 Hz. The frequency of source is?205Hz190Hz210Hz195Hz12. A wave transmits momentum. Can’t it transfer angular momentum?FalseTrue13. What kind of wave is formed in organ pipes?Transverse stationary wavesLongitudinal stationary waveMechanical wavesElectromagnetic waves14. A person is standing on a railway platform and a train is approaching to him, what is maximum wavelength of sound he can hear? Wavelength of whistle=1m, speed of sound in air=330m/s, speed of train=36km/h.12/13m1m32/322m33/32m15. What are the essential properties a medium must possess for the propagation of mechanical waves?Minimum frictionConstant temperatureStable pressureMaximum friction16. The material that a wave travels through is called theRarefactionMediumCompressionAmplitude17. The distance between two successive crests of a water wave is 1 m. If a particle on the surface of the water makes two complete vertical oscillations in 1 second, calculate the speed of the wave2.0 m/s3.0 m/s0.5 m/s1.0 m/s18. Mechanical waves are called elastic waves.TrueFalse19. The loudness and pitch of a sound note depends on __________Intensity and frequencyFrequency and number of harmonicsFrequency and velocityIntensity and velocity20. What is the most fundamental property of wave?pressurefrequencywavelengthtemperatue21. Sixty complete waves pass a particular point in 4 s . If the distance three successive troughs of the waves is 15 m , calculate the speed of the waves225 m/s75 m/s300 m/s112.5 m/s22. A car sounding its horn at 480Hz moves towards a high wall at a speed of 20m/s, the frequency of the reflected sound heard by the man sitting in the car will be nearest to ________510Hz480Hz540Hz570Hz23. Which of the following is not a type of electromagnetic wave? Red lightRadio wavesSoundGamma radiation24. Speed of recession of a galaxy is proportional to its distance _____ExponentiallyLinearlyInverselyDirectly25. For an aluminium the modulus of rigidity is 2.1×1010 N/m2 and density is 2.7×103 kg/m3. Find the speed of transverse waves in the medium.25.14×10³ m/s24.1×10³ m/s2.79×10³ m/s27.9×10³ m/s26 out of 25Time is Up!
