To hear a clear resonance, what must be the distance between the listener and the reflector? -General Knowledge

To hear a clear resonance, what must be the distance between the listener and the reflector? -General Knowledge
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To hear a clear echo, the distance between the listener and the reflector should be

Description : To hear a clear echo, the distance between the listener and the reflector should be

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What is the minimum distance between the reflector and the source to hear the echo? ?

Description : What is the minimum distance between the reflector and the source to hear the echo? ?

Last Answer : The minimum distance between the reflector and the source to hear the echo is 18.6 meters.

What is affected by the distance between the listener and the source of the sound because the intensity varies inversely with the square of the distance? A. Volume B. Pitch C. Loudness D. Frequency

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Description : In general, how can I become a better listener?

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Description : How are music preferences correlated with characteristics of the listener?

Last Answer : answer:You might be interested in the work of Samuel Gosling and Jason Rentfrow, although they are academics, not market researchers. http://www.apa.org/monitor/julaug03/listen.html

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Description : What is the feminine form of the word ' listener ' ?

Last Answer : The feminine form of the word ' listener ' is - listener.

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Which are waves moving from a sitar to a listener in air?

Description : Which are waves moving from a sitar to a listener in air?

Last Answer : L o n g i t u d i n a l progressive

Which of the following groups of individuals may stare at the floor during conversations as a sign of respect? a) Native Americans Some Native Americans stare at the floor during conversations, conveying respect and indicating that the listener is paying close attention to the speaker. b) Indo-Chinese The Indo-Chinese may consider direct eye contact impolite or aggressive. c) Arabs Arabs may consider direct eye contact impolite or aggressive. d) Asians Asians may consider direct eye contact impolite or aggressive.

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Last Answer : a) Native Americans Some Native Americans stare at the floor during conversations, conveying respect and indicating that the listener is paying close attention to the speaker.

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Last Answer : ANSWER: X -- DECREASES

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Last Answer : Scientist Newton invented the reflecting telescope.

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Last Answer : refractive telescope 1. This device uses two or three convex lenses or one convex lens and one concave lens to form reflection through refraction. 2. The color of the reflection in this device is ... 5. It is relatively easy to make mirrors for large children. . The scattering capacity is high.

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Last Answer : The center point of the reflecting surface of a spherical mirror is called pole.

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Last Answer : The medium through which the word is reflected back is called the reflector.

Horn-Fed Cassegrain reflector antenna

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Convex mirror is generally used in - (1) solar cookers (2) opthalmoscope (3) reflector for head light (4) rear view mirror

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Last Answer : (4) rear view mirror Explanation: Rear view mirrors of carsare convex mirrors as they enable the driver to see a wide area of the road behind the car. The convex mirror makes the rays of ... if they were coming from its focus, thereby produdcing a diminished virtual image which the driver can see.

Which nuclear reactor uses water as a coolant, moderator and reflector ?

Description : Which nuclear reactor uses water as a coolant, moderator and reflector ?

Last Answer : Pressurised water reactor.

Which of the following improves antenna directivity? A. Driven element B. Reflector element C. Director element D. Parasitic element

Description : Which of the following improves antenna directivity? A. Driven element B. Reflector element C. Director element D. Parasitic element

Last Answer : D. Parasitic element

A dipole antenna requires to be fed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11kW. What is the gain in dB, obtained by the use if the reflector. (Gain referred to this particular dipole). A. 4.75 B. 2.6 C. 1.81 D. 4.24

Description : A dipole antenna requires to be fed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11kW ... Gain referred to this particular dipole). A. 4.75 B. 2.6 C. 1.81 D. 4.24

Last Answer : B. 2.6

The main function of a communications satellite is a/ an A. repeater B. reflector C. beacon D. observation platform

Description : The main function of a communications satellite is a/ an A. repeater B. reflector C. beacon D. observation platform

Last Answer : A. repeater

Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Description : Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Last Answer : D. Transponder

Known as the technique for adding a series inductor at or near the center of an antenna element in order to cancel the capacitive reactance of an antenna. A. Dipole B. Center loading C. Reflector D. loading coil

Description : Known as the technique for adding a series inductor at or near the center of an antenna element in order to cancel the capacitive reactance of an antenna. A. Dipole B. Center loading C. Reflector D. loading coil

Last Answer : D. loading coil

The reflector and director of an antenna array are considered as A. Parasitic elements B. Transcendental elements C. Feed-points D. Driven elements

Description : The reflector and director of an antenna array are considered as A. Parasitic elements B. Transcendental elements C. Feed-points D. Driven elements

Last Answer : A. Parasitic elements

A dipole antenna requires to be feed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11 kW. What is the gain in dB obtain by the use of the reflector ? ( Gain referred to this particular dipole) A. 4.24 B. 1.81 C. 4.75 D. 2.6

Description : A dipole antenna requires to be feed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11 ... ( Gain referred to this particular dipole) A. 4.24 B. 1.81 C. 4.75 D. 2.6

Last Answer : D. 2.6

A type of array antenna which consists of one half-wave driven dipole, one reflector and one director A. Hertzian dipole B. Yagi-uda C. Broadside collinear D. Log periodic dipole array

Description : A type of array antenna which consists of one half-wave driven dipole, one reflector and one director A. Hertzian dipole B. Yagi-uda C. Broadside collinear D. Log periodic dipole array

Last Answer : B. Yagi-uda

ECE Board Exam March 1996 An antenna that is circularly polarized is the ____________. A. parabolic reflector B. helical C. Yagi-uda D. small circular loop

Description : ECE Board Exam March 1996 An antenna that is circularly polarized is the ____________. A. parabolic reflector B. helical C. Yagi-uda D. small circular loop

Last Answer : B. helical

A concave mirror cannot be used as : (a) a magnifying mirror (b) a torch reflector (c) a dentist‘s mirror (d) a rear view mirror

Description : A concave mirror cannot be used as : (a) a magnifying mirror (b) a torch reflector (c) a dentist‘s mirror (d) a rear view mirror

Last Answer : (c) a dentist‘s mirror

A perfect conductor acts as a a) Perfect transmitter b) Perfect reflector c) Bad transmitter d) Bad reflector

Description : A perfect conductor acts as a a) Perfect transmitter b) Perfect reflector c) Bad transmitter d) Bad reflector

Last Answer : b) Perfect reflector

A perfect dielectric acts as a a) Perfect transmitter b) Perfect reflector c) Bad transmitter d) Bad reflector

Description : A perfect dielectric acts as a a) Perfect transmitter b) Perfect reflector c) Bad transmitter d) Bad reflector

Last Answer : a) Perfect transmitter

The broadside array consists of a flat reflector and what other elements?

Description : The broadside array consists of a flat reflector and what other elements?

Last Answer : Two or more half-wave dipoles.

How many major lobes are produced by a paraboloid reflector?

Description : How many major lobes are produced by a paraboloid reflector?

Last Answer : One.