This is the Multiples Choice Questions Part 12 of the Series in Physics as one of the General Engineering and Applied Sciences (GEAS) topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including past Board Questions in General Engineering and Applied Sciences (GEAS), Physics Books, Journals and other Physics References.
Online Questions and Answers in Physics Series
Following is the list of multiple choice questions in this brand new series:
Continue Practice Exam Test Questions Part XII of the Series
Choose the letter of the best answer in each questions.
551. A type of wave in which the particles vibrate in direction at right angles to the direction of the wave travel.
- a) Wave front
- b) Transverse waves
- c) Longitudinal waves
- d) Wave length
552. A type of wave in which individual particles vibrate in a direction parallel to the direction of the wave travel.
- a) Longitudinal waves
- b) Stationary wave
- c) Wave front
- d) Transverse waves
553. A surface that passes through all points in the wave those are in the same phase.
- a) Longitudinal waves
- b) Transverse waves
- c) Wave front
- d) Stationary wave
554. Interference in which two waves arrive at a point in phase with each other and the resulting amplitude is the sum of the amplitudes is the sum of the amplitudes of the two original waves.
- a) Constructive interference
- b) Destructive interference
- c) Opposing interference
- d) None of these
555. The waves arrive a half wave out of phase and the resultant amplitude is the difference between the two amplitude.
- a) Destructive interference
- b) Constructive interference
- c) Opposing interference
- d) None of these
556. A principle stating that each point on a wave front may be considered as a new source of disturbance sending wavelets in forward direction. At any instant the new wave front is the surface tangent to all wave length.
- a) Huygen’s principle
- b) Hygen’s principle
- c) Hugen’s principle
- d) Hegyn’s principle
557. The change of direction of a wave due to speed changes.
- a) Dispersion
- b) Refraction
- c) Wave front
- d) Wave misalignment
558. Wave produced when two waves of equal amplitude and frequency travel in opposite directions in a medium.
- a) Stationary Wave
- b) Antinodes
- c) wave front
- d) wave misalignment
559. Points in a stationary wave at which the amplitude is zero.
- a) antinodes
- b) nodes
- c) pronodes
- d) none of these
560. Points of maximum amplitude.
- a) antinodes
- b) nodes
- c) pronodes
- d) none of these
561. A disturbance caused by a vibrating body and sense by the ear.
- a) force vibration
- b) resonance
- c) sound
- d) intensity
562. Set up by an elastic body by another vibrating body.
- a) resonance
- b) amplitude
- c) forced vibration
- d) super sonic wave
563. Forced vibration where the natural frequency of the coupled body is the same as that of the vibrator.
- a) resonance
- b) amplitude
- c) forced vibration
- d) super sonic wave
564. Effect due to the combined action of two set of waves passing through a single region at the same time.
- a) interference
- b) Doppler effect
- c) refraction
- d) ultrasonic
565.The apparent frequency of a sound source is changed if there is relative motion between the source and the observer.
- a) Doppler effect
- b) supersonic
- c) interference
- d) ultrasonic
566. A highly concentrated pressure wave caused by an object flying faster than speed of sound.
- a) sonic-boom shock wave
- b) ultrasonic
- c) supersonic
- d) resonance
567. A speed greater than the speed of sound.
- a) supersonic
- b) ultrasonic
- c) infrasonic
- d) micro sonic
568. Sound produced by an object that vibrates with a frequency above the range of human hearing.
- a) supersonic
- b) ultrasonic
- c) infrasonic
- d) micro sonic
569. The study of sound production and transmission in relation to the human sense of hearing.
- a) music
- b) acoustic
- c) noise
- d) pitch
570. A sound produce by a regular vibration.
- a) musical tone
- b) acoustic
- c) noise
- d) pitch
571. Any undesirable sound.
- a) musical tone
- b) acoustic
- c) noise
- d) pitch
572. The highness or lowness of a sound as characterized by the frequency of vibration.
- a) musical tone
- b) acoustic
- c) noise
- d) pitch
573. Refers to the complexity of the sound.
- a) musical tone
- b) acoustic
- c) noise
- d) pitch
574. The magnitude of hearing sensation produced by the sound.
- a) intensity
- b) intensity level
- c) loudness
- d) bell
575. The rate at which sound energy flows through a unit area.
- a) intensity
- b) intensity level
- c) loudness
- d) bell
576. The logarithm of the ratio of the intensity of a sound to an arbitrary chosen intensity.
- a) intensity
- b) intensity level
- c) loudness
- d) bell
577. The unit of intensity.
- a) intensity
- b) intensity level
- c) loudness
- d) bel
578. The succession of tones related to each other.
- a) musical tone
- b) intensity level
- c) musical pitch
- d) musical scale
579. The persistence of sound in a enclose space.
- a) echo
- b) reverberation
- c) reflection
- d) complexity
580. Rebounding of light from certain substances.
- a) reflection
- b) interference
- c) refraction
- d) diffraction
581. The property of light by which it travels in a straight line.
- a) intensity
- b) rectilinear propagation
- c) polarization
- d) diffraction
582. The process by which the vibrations of light are confined to a definite plane.
- a) intensity
- b) rectilinear propagation
- c) polarization
- d) diffraction
583. A theory which states that light is a special form of wave disturbances.
- a) wave theory or adulatory theory of light
- b) quantum theory
- c) wave disturbances theory
- d) none of these
584. States that energy exchanges between matters occur in discrete amounts of energy which are proportional to the frequency.
- a) wave theory or adulatory theory of light
- b) quantum theory
- c) wave disturbances theory
- d) none of these
585. Refers to the quantity of visible radiation passing per unit time.
- a) luminous flux
- b) quantum theory
- c) lumen
- d) candle
586. Unit of luminous intensity
- a) luminous flux
- b) luminous intensity
- c) lumen
- d) candle
587. Unit of luminous flux.
- a) luminous flux
- b) luminous intensity
- c) lumen
- d) candle
588. Evaluated in terms of the power that causes the brightness sensation from a standard candle.
- a) illuminance
- b) luminous intensity
- c) lumen
- d) candle
589. Luminous flux per unit area that reaches the surface.
- a) illuminance
- b) luminous intensity
- c) lumen
- d) candle
590. A faint blue white glow produced in water and other transparent substances when charges particles pass through the substances at speeds greater than the speed of light through these substances.
- a) illuminance
- b) cherenkov radiation
- c) blue tooth
- d) radiation
591. Instrument use for comparing luminous intensities of light sourced.
- a) odometer
- b) luminous tester
- c) luminance
- d) photometer
592. Source intensity per unit projected area of emitting surface.
- a) odometer
- b) luminous tester
- c) luminance
- d) photometer
593. Law of reflection.
- a) the angle of reflection is equal to the angle of incidence.
- b) the reflected ray, the incident ray, and the normal to the surface are in the same plane principal focus of a spherical mirror.
- c) both a and b
- d) none of these
594. Rays farther from the principal axis of the spherical mirror are reflected to cross the axis nearer to the mirror than those close to the axis.
- a) spherical
- b) aberration
- c) vertical length
- d) spherical aberration
595. The ratio of the speed of light v1 in the first medium to the speed v2 in the second medium.
- a) absolute index of refraction
- b) index of refraction
- c) total internal refraction
- d) mirage
596. The ratio of the speed of light in empty space to the speed in the medium.
- a) absolute index of refraction
- b) index of refraction
- c) total internal refraction
- d) mirage
597. Phenomenon due to atmospheric refraction.
- a) absolute index of refraction
- b) index of refraction
- c) total internal refraction
- d) mirage
598. Occur when light passes from a medium of less speed to one of greater speed.
- a) absolute index of refraction
- b) index of refraction
- c) total internal refraction
- d) mirage
599. The point at which rays parallel to the principal axis converge after passing through a converging lens.
- a) principal focus
- b) focal length
- c) real image
- d) virtual image
600. Distance of principal focus from the lens.
- a) principal focus
- b) focal length
- c) real image
- d) virtual image
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