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Assignment Questions - 14182_247
Assignment Questions - 14182_249

Neets Module 10-Introduction to Wave Propagation, Transmission Lines, and Antennas
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4 1-28.   What are the three basic characteristics of sound? 1.   Amplitude, intensity, and quality 2.   Amplitude, pitch, and tone 3.   Pitch, intensity, and quality 4.   Pitch, frequency, and quality 1-29.   If several musical instruments are playing the same note, you should be able to distinguish one instrument from another because of which of the following characteristics of sound? 1.   Quality 2.   Overtones 3.   Frequency 4.   Intensity 1-30.   Through which of the following mediums will sound travel fastest, at the indicated temperature? 1.   Air at    68º F 2.  Lead at 20º C 3.  Steel at 32º F 4.  Steel at 20º C 1-31.   In sound terminology, which of the following terms is the same as a wave reflection? 1.  Echo 2.  Image 3.  Acoustics 4.  Refraction 1-32.   Multiple reflections of sound waves are referred to as 1.  noise 2.  acoustics 3.  interference 4.  reverberation 1-33.   Two out-of-phase waves of the same frequency that are moving through the same medium are said to present which of the following types of interference? 1.  Additive 2.  Constructive 3.  Both 1 and 2 above 4.  Subtractive 1-34.   A cavity that vibrates at its own natural frequency and produces a sound that is louder than at other frequencies is demonstrating which of the following sound characteristics? 1.  Noise 2.  Quality 3.  Resonance 4.  Reverberation 1-35.   Energy in the form of light can be produced through which of the following means? 1.  Chemical 2.  Electrical 3.  Mechanical 4.  Each of the above 1-36.   The scientist, J. C. Maxwell, developed the theory that small packets of electromagnetic energy called photons produce 1.  sound 2.  noise 3.  echoes 4.  light 1-37.   A large volume of light radiating in a given direction is referred to as a 1.  ray 2.  beam 3.  shaft 4.  pencil






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