Tag: waves
(ii) State uses of beats
State uses of beats Measurements of frequency of a note Tuning a musical instrument to a given note Thank u Please subscribe to promote our ... Read More
State differences between progressive and stationary waves
State differences between progressive and stationary waves Progressive wave Stationary wave - There is energy flow along the wave - Vibrations are the same ... Read More
Use Huygens’ principle to show that speed, V, of light in the dielectric is given by V = c/n where c is the speed of light.
Use Huygens’ principle to show that speed, V, of light in the dielectric is given by V = c/n where c is the speed of ... Read More
State Huygens’ Principle
State Huygens’ Principle The Huygens's Principle states that every point on a wave front is a source of wavelets. These wavelets spread out in the forward ... Read More
What is harmonic in sound?
What is harmonic in sound? Harmonic is one of the frequencies that can be produced by a given instrument (both stringed and piped) Please subscribe ... Read More
What is the implication of reverberation in a hall
What is the implication of reverberation in a hall? Reduces clarity of music and speech. Reverberation of a small degree is necessary because it enhance ... Read More
State factors that affect the speed of sound in air
State two factors that affect the speed of sound in air Temperature of the air Humidity of the air Wind velocity Please subscribe to ... Read More
Explain how interference pattern is formed
Explain how interference pattern is formed When two waves from coherent source sources cross they superpose. Where the path difference is odd multiple of a ... Read More
State the principal of superposition of waves
State the principal of superposition of waves The resultant displacement at any point is the sum of displacements due to the separate waves. Please subscribe ... Read More
State differences between mechanical and electromagnetic waves
State differences between mechanical and electromagnetic waves Mechanical wave Electromagnetic waves - Need material medium for propagation - Propagate at relatively low speed - ... Read More
State differences between the spectra produced by a prism and that by diffraction grating.
State differences between the spectra produced by a prism and that by diffraction grating. Prism Diffraction grating - Produce single spectrum at a time ... Read More
State characteristics of a stationary wave
State characteristics of a stationary wave Amplitude of a wave varies from place to place along the profile. Wave energy is not transmitted along the ... Read More
Explain how two coherent sources are obtained using a biprism?
Explain how two coherent sources are obtained using a biprism? A prism of a very large angle is placed with its refractive edge facing a ... Read More
What is meant by intensity of a sound note?
What is meant by intensity of a sound note? This is the rate of flow of energy through an area of 1m2 perpendicular to the ... Read More
Draw a sketch diagram showing reflection of a circular wave by a plane reflector.
Draw a sketch diagram showing reflection of a circular wave by a plane reflector. Please subscribe to promote our website. Subscription is free. Click ... Read More
Define the terms wave front and a ray in reference to a progressive wave
Define the terms wave front and a ray in reference to a progressive wave Wave front is a section through an advancing wave along which ... Read More
Explain using the principle of superposition of wave the formation of stationary waves
Explain using the principle of superposition of wave the formation of stationary waves Solution When two waves of the same frequency, equal wavelength and equal ... Read More
Explain using the principle of superposition of wave the formation of beats
Explain using the principle of superposition of wave the formation of beats When two waves of nearly equal frequencies and similar amplitudes are sounded together, ... Read More
Describe an experiment to determine end- correction of resonance tube.
Describe an experiment to determine end- correction of resonance tube. Solution A sounding tuning fork of known frequency s is held over open end of ... Read More
Explain why an oil layer on the water surface appears colored on a rainy day
Explain why an oil layer on the water surface appears colored on a rainy day Solution Then white light incident on the oil film, is ... Read More
Give applications of the Doppler Effect.
Give applications of the Doppler Effect. Determining directional motion of stars Estimating speed of stars Estimating speed of cars using a speed gun Determination of ... Read More
Describe an experiment to determine the velocity of sound in air using tuning forks of different frequencies and resonate tube.
Solution A resonance tube is place to stand in a tall jar full of water. Starting with a short length air column, a vibrating tuning ... Read More
Distinguish between free oscillation and damped oscillation.
Distinguish between free oscillation and damped oscillation. Free oscillation are oscillations in which the total energy of oscillating system is constant (and the amplitude of ... Read More
Describe how interference fringes are formed in wedge shaped film of air.
Describe how interference fringes are formed in wedge shaped film of air. solution A monochromatic light incident normally at O is partially reflected and partially ... Read More
Explain what is observed on the interference pattern fringes in Young’s double experiment when white light is used?
Explain what is observed on the interference pattern fringes in Young’s double experiment when white light is used? A central white fringe with colored edges ... Read More
With the aid of a diagram, describe how interference can be produced by division of wave front.
With the aid of a diagram, describe how interference can be produced by division of wave front. S, S1 and S2 are narrow slits parallel ... Read More
State conditions necessary for interference patterns to be formed.
State conditions necessary for interference patterns to be formed. the two sources must be coherent; i.e. they must have the same wavelength and be in ... Read More
Explain how reverberation can be minimized in a large hall.
Explain how reverberation can be minimized in a large hall. Reverberation can be reduced by using materials such as fibre board, heavy curtains, plastics that ... Read More
Explain reverberation as applied to sound waves
Explain reverberation as applied to sound waves Reverberation is the prolongation of sound after the sound source has been stopped due to large number of ... Read More
Explain how stationary waves are formed.
Standing waves are formed by the superposition of two travelling waves of the same frequency (with the same polarization and the same amplitude) travelling in opposite directions. This is ... Read More
Describe how plane polarized light can be produced by double refraction
Describe how plane polarized light can be produced by double refraction A narrow beam of monochromatic light is made incident on nicol prism and viewed ... Read More
Explain how interference fringes are formed in an air wedge.
Explain how interference fringes are formed in an air wedge. Monochromatic light from the lamp is reflected by the inclined glass plate so that it ... Read More