What is colour of light related to ? (1) Amplitude (2) Frequency (3) Quality (4) Velocity

What is colour of light related to ? (1) Amplitude (2) Frequency (3) Quality (4) Velocity
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Amplitude
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What is colour of light related to? (1) Amplitude (2) Frequency (3) Quality (4) Velocity

Description : What is colour of light related to? (1) Amplitude (2) Frequency (3) Quality (4) Velocity

Last Answer : (1) Amplitude Explanation: Colour or colour is the visual perceptual property corresponding in humans to the categories called red, green, blue, and others. Colour derives from the spectrum ... power versus wavelength) interacting in the eye with the spectral sensitivities of the light receptors.

Quality of a musical note depends on – (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium

Description : Quality of a musical note depends on – (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium

Last Answer : (3) Harmonics present Explanation: Sound "quality" or "timbre" describes those characteristics of sound which allow the ear to distinguish sounds which have the same pitch and loudness. Timbre is mainly ... and the attack-decay envelope of the sound. Harmonic content is the most important of these.

Quality of a musical note depends on (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium

Description : Quality of a musical note depends on (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium

Last Answer :  Harmonics present

When a light wave is reflected from a mirror, there is a change in its – (1) frequency (2) amplitude (3) wavelength (4) velocity

Description : When a light wave is reflected from a mirror, there is a change in its – (1) frequency (2) amplitude (3) wavelength (4) velocity

Last Answer : (2) amplitude Explanation: When a light wave is reflected from an object, it changes not only its amplitude but also its phase according to the properties of the object at a particular point. The velocity and momentum are just reversed in another direction.

When a light wave is reflected from a mirror, there is a change in its (1) frequency (2) amplitude (3) wavelength (4) velocity

Description : When a light wave is reflected from a mirror, there is a change in its (1) frequency (2) amplitude (3) wavelength (4) velocity

Last Answer : amplitude

Define : i) Amplitude ii) Frequency iii) Time period iv) Angular velocity related to a.c.

Description : Define : i) Amplitude ii) Frequency iii) Time period iv) Angular velocity related to a.c.

Last Answer : i) Frequency:  It is the number of cycles completed by an alternating quantity in one second. ii) Time Period:  The time (in sec) required by an alternating quantity to complete its one cycle is known as time period. 

Of the following properties of a wave, the one that is independent of the other is its (1) amplitude (2) velocity (3) wavelength (4) frequency

Description : Of the following properties of a wave, the one that is independent of the other is its (1) amplitude (2) velocity (3) wavelength (4) frequency

Last Answer : (1) amplitude Explanation: The maximum extent of a vibration or oscillation, measured from the position of equilibrium.

The pitch of sound depends on its – (1) Frequency (2) Intensity (3) Velocity (4) Amplitude

Description : The pitch of sound depends on its – (1) Frequency (2) Intensity (3) Velocity (4) Amplitude

Last Answer : (1) Frequency Explanation: Pitch is a perceptual property that allows the ordering of sounds on a frequencyrelated scale. Pitch may be quantified as a frequency, but pitch is not a purely objective physical property; it is a subjective psychoacoustical attribute of sound.

The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In analogue television, the sound portion of a broadcast is invariably modulated separately from the video. Most commonly, the audio and video are combined at ... visual antennas can be used. In almost all cases, standard wideband frequency modulation is used.

Of the following properties of a wave, the one that is independent of the other is its (1) amplitude (2) velocity (3) wavelength (4) frequency

Description : Of the following properties of a wave, the one that is independent of the other is its (1) amplitude (2) velocity (3) wavelength (4) frequency

Last Answer : a) amplitude Explanation: The maximum extent of a vibration or oscillation, measured from the position of equilibrium.

The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with ... , the sound portion of a broadcast is invariably modulated separately from the video.

If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Description : If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Last Answer : ANSWER: Z -- AMPLITUDE

The ENERGY associated with a photon depends upon the photon's: w) velocity x) frequency y) amplitude z) the brightness of the source from which it comes

Description : The ENERGY associated with a photon depends upon the photon's: w) velocity x) frequency y) amplitude z) the brightness of the source from which it comes

Last Answer : ANSWER: X -- FREQUENCY

Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Last Answer : ANSWER: W -- PROPAGATION VELOCITY

The pitch of sound depends on its (1) Frequency(2) Intensity (3) Velocity (4) Amplitude

Description : The pitch of sound depends on its (1) Frequency(2) Intensity (3) Velocity (4) Amplitude

Last Answer : Frequency

The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : Frequency modulated

The quality or tone of a musical sound produced by a stringed instrument depends on – (1) frequency of vibration (2) length of the strings in the instrument (3) Amplitude of vibration (4) wave form of the sound

Description : The quality or tone of a musical sound produced by a stringed instrument depends on – (1) frequency of vibration (2) length of the strings in the instrument (3) Amplitude of vibration (4) wave form of the sound

Last Answer : (4) wave form of the sound Explanation: The timbre or quality of a sound depends on its wave form, which varies with the number of over-tones, or harmonics, that are present, their ... particular musical sound have a different sound from another, even when they have the same pitch and loudness.

Sound energy passing per second through a unit area held perpendicular is called - (1) Intensity (2) Frequency (3) Amplitude (4) Quality

Description : Sound energy passing per second through a unit area held perpendicular is called - (1) Intensity (2) Frequency (3) Amplitude (4) Quality

Last Answer : (1) Intensity Explanation: Sound energy passes through a unit area held perpendicular to the direction of propagation of sound waves is called intensity of sound.

The quality or tone of a musical sound produced by a stringed instrument depends on (1) frequency of vibration (2) length of the strings in the instrument (3) Amplitude of vibration (4) wave form of the sound

Description : The quality or tone of a musical sound produced by a stringed instrument depends on (1) frequency of vibration (2) length of the strings in the instrument (3) Amplitude of vibration (4) wave form of the sound

Last Answer : wave form of the sound

In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Description : In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Last Answer : (4) All of the above Explanation: In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) ... photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation.

In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Description : In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above

Last Answer : All of the above

The maximum velocity of a body in SHM with amplitude of 150 mm and a frequency 2 vibrations/sec is equal to a.1.885 m/sec b.0.01885 m/sec c.0.1885 m/sec d.18.55 m/sec e.185.5 m/sec

Description : The maximum velocity of a body in SHM with amplitude of 150 mm and a frequency 2 vibrations/sec is equal to a.1.885 m/sec b.0.01885 m/sec c.0.1885 m/sec d.18.55 m/sec e.185.5 m/sec

Last Answer : a. 1.885 m/sec

Of the following properties of a wave, the one that is independent of the other is its (a) Amplitude (b) Velocity (c) Wavelength (d) Frequency

Description : Of the following properties of a wave, the one that is independent of the other is its (a) Amplitude (b) Velocity (c) Wavelength (d) Frequency

Last Answer : Ans:(a)

The loudness of sound depends upon (1) Velocity (2) Pitch (3) Amplitude (4) Wavelength

Description : The loudness of sound depends upon (1) Velocity (2) Pitch (3) Amplitude (4) Wavelength

Last Answer : (3) Amplitude Explanation: Loudness is the characteristic of a sound that is primarily a psychological correlate of physical strength (amplitude).

Which of the following statements dealing with simple harmonic motion of a mass-spring system is TRUE? w) The acceleration is largest when the oscillating mass is instantaneously at rest. x) The larger the spring force constant the larger the period. y) The period of the motion depends linearly on the amplitude of the motion. z) The acceleration is larger when the oscillating mass has its greatest velocity.

Description : Which of the following statements dealing with simple harmonic motion of a mass-spring system is TRUE? w) The acceleration is largest when the oscillating mass is instantaneously at rest. x) The ... of the motion. z) The acceleration is larger when the oscillating mass has its greatest velocity.

Last Answer : ANSWER: W -- THE ACCELERATION IS LARGEST WHEN THE OSCILLATING MASS IS INSTANTANEOUSLY AT REST 

Loudness of sound varies directly with vibrating body’s – (1) Intensity (2) Amplitude (3) Pitch (4) Quality

Description : Loudness of sound varies directly with vibrating body’s – (1) Intensity (2) Amplitude (3) Pitch (4) Quality

Last Answer : (2) Amplitude Explanation: Loudness of Sound: Loudness of sound depends on amplitude of vibration. Loudness of sound is directly proportional to square of amplitude of vibration.

Loudness of sound depends on – (1) Frequency (2) Wavelength (3) Amplitude (4) Pitch

Description : Loudness of sound depends on – (1) Frequency (2) Wavelength (3) Amplitude (4) Pitch

Last Answer : (3) Amplitude Explanation: Loudness depends on the amplitude of the sound wave. The larger the amplitude the more energy the sound wave contains therefore the louder the sound. The pitch of a note depends on the frequency of the source of the sound.

Which among the following determines the pitch of a sound? (1) Amplitude (2) Frequency (3) Loudness (4) Wavelength

Description : Which among the following determines the pitch of a sound? (1) Amplitude (2) Frequency (3) Loudness (4) Wavelength

Last Answer : (2) Frequency Explanation: The pitch of a sound is determined by the frequency of vibration of the sound waves So higher the frequency the higher is the pitch.

Which of the following property of sound is affected by change in air temperature – (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength

Description : Which of the following property of sound is affected by change in air temperature – (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength

Last Answer : (4) Wavelength Explanation: The wavelength of sound changes with temperature. This is because the speed of sound changes with the temperature. Since the speed of sound is different at different temperature, this ... while the same tone in fresh water at 68°F would have a wavelength of 48.05 feet.

Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0

Description : Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0

Last Answer : (1) 1.0 Explanation: Since the amplitudes, frequency and the speed of both the waves are in same, hence the wavelength of the composite wave will be the same as the single wave.

In FM, frequency of modulated wave varies with A. amplitude B. time C. wavelength D. energy

Description : In FM, frequency of modulated wave varies with A. amplitude B. time C. wavelength D. energy

Last Answer : time

In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Description : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Last Answer : constant

Variation in amplitude or frequency of carrier wave is called A. amplitude modulation B. frequency modulation C. modulation D. bandwidth

Description : Variation in amplitude or frequency of carrier wave is called A. amplitude modulation B. frequency modulation C. modulation D. bandwidth

Last Answer : modulation

Amplitude of modulated wave is in phase with A. output B. system C. frequency D. signal

Description : Amplitude of modulated wave is in phase with A. output B. system C. frequency D. signal

Last Answer : signal

Standing waves are formed when two sets of waves of equal amplitude and frequency w) are in phase x) are in opposite phase y) move through each other in opposite directions z) are reflected from the same surface

Description : Standing waves are formed when two sets of waves of equal amplitude and frequency w) are in phase x) are in opposite phase y) move through each other in opposite directions z) are reflected from the same surface

Last Answer : ANSWER: Y -- MOVE THROUGH EACH OTHER IN OPPOSITE DIRECTIONS 

The period of oscillation of a particle undergoing simple harmonic motion is: w) independent of the amplitude of the motion x) directly proportional to the frequency of oscillation y) independent of the frequency of oscillation z) none of the above

Description : The period of oscillation of a particle undergoing simple harmonic motion is: w) independent of the amplitude of the motion x) directly proportional to the frequency of oscillation y) independent of the frequency of oscillation z) none of the above

Last Answer : ANSWER: W -- INDEPENDENT OF THE AMPLITUDE OF THE MOTION 

Which of the following property of sound is affected by change in air temperature (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength

Description : Which of the following property of sound is affected by change in air temperature (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength

Last Answer : Wavelength

Loudness of sound depends on (1) Frequency (2) Wavelength (3) Amplitude (4) Pitch

Description : Loudness of sound depends on (1) Frequency (2) Wavelength (3) Amplitude (4) Pitch

Last Answer : Amplitude

Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0

Description : Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0

Last Answer : 2mm

Two light rays will interfere constructively with maximum amplitude if the path difference between them is: w) one wavelength x) one-half wavelength y) one-quarter wavelength z) one-eighth wavelength

Description : Two light rays will interfere constructively with maximum amplitude if the path difference between them is: w) one wavelength x) one-half wavelength y) one-quarter wavelength z) one-eighth wavelength

Last Answer : ANSWER: W -- ONE WAVELENGTH

A body having SHM has period of 6 sec and amplitude of 4 mts. Maximum velocity is a.?/3 m/s b.2?/3 m/s c.107 dynes d.3? m/s e.4?/3 m/s

Description : A body having SHM has period of 6 sec and amplitude of 4 mts. Maximum velocity is a.?/3 m/s b.2?/3 m/s c.107 dynes d.3? m/s e.4?/3 m/s

Last Answer : e. 4?/3 m/s

A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Description : A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Last Answer : e. Mean position

The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Description : The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Last Answer : c) The intensity of light

Which of the following refers to the video signal amplitude that determines the quality of the picture? A. Chrominance B. Luminance C. Brightness D. Contrast

Description : Which of the following refers to the video signal amplitude that determines the quality of the picture? A. Chrominance B. Luminance C. Brightness D. Contrast

Last Answer : D. Contrast

A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Description : A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Last Answer : c. 1 rps

How does the energy of a wave depend on its frequency if the amplitude stays constant?

Description : How does the energy of a wave depend on its frequency if the amplitude stays constant?

Last Answer : Feel Free to Answer

What are the relationships that are present between frequency wavelength and amplitude of a wave?

Description : What are the relationships that are present between frequency wavelength and amplitude of a wave?

Last Answer : Need answer

A woman’s voice is shriller than a man’s due to _____? A. Higher Frequency B. Lower frequency C. Higher amplitude D. Weak vocal chords

Description : A woman’s voice is shriller than a man’s due to _____? A. Higher Frequency B. Lower frequency C. Higher amplitude D. Weak vocal chords

Last Answer : ANSWER: A

Under normal conditions, the speed of a two-speed squirrel cage induction motor is changed by varying the ____________. A. frequency of the applied voltage B. resistance in the rotor circuit C. number of field poles D. amplitude of the applied voltage

Description : Under normal conditions, the speed of a two-speed squirrel cage induction motor is changed by varying the ____________. A. frequency of the applied voltage B. resistance in the rotor circuit C. number of field poles D. amplitude of the applied voltage

Last Answer : Answer: C

What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

Description : What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

Last Answer : D. A frequency modulated continuous wave