This is the Multiples Choice Questions Part 13 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 XIII of the Series
Choose the letter of the best answer in each questions.
601. When the principal focus is between object and lens.
- a) primary
- b) focal length
- c) real image
- d) virtual image
602. When object is between lens and principal focus.
- a) converging lens
- b) focal length
- c) real image
- d) virtual image
603. A type of lens which causes a set of parallel rays to converge after passing through the lens
- a) converging lens
- b) diverging lens
- c) real image
- d) virtual image
604. A lens that causes parallel rays to diverge after refraction.
- a) converging lens
- b) diverging lens
- c) real image
- d) virtual image
605. It only produces a virtual image of any object regardless of position.
- a) converging lens
- b) first surface
- c) diverging lens
- d) diverging image
606. The defect of a lens by which rays entering near the edge of the lens are brought to a focus nearer the lens than the rays that enter near the center.
- a) coma
- b) distortion
- c) astigmatism
- d) spherical aberration
607. A form of lateral spherical aberration whereby rays from object points not on the principal axis are focused in a comet-shaped image.
- a) coma
- b) distortion
- c) astigmatism
- d) spherical aberration
608. Caused by variations in the magnification of the outermost portion of the image, resulting in a barrel-shaped or pin-cushion-shaped images of a square- mesh object.
- a) coma
- b) distortion
- c) astigmatism
- d) spherical aberration
609. The defect whereby horizontal and vertical lines are brought to a focus at different distances.
- a) coma
- b) distortion
- c) astigmatism
- d) spherical aberration
610. The adjustment of the eye for seeing at different distances.
- a) hyperopia
- b) accommodation
- c) myopia
- d) magnifier
611. The inability of the eye to clearly see distant objects.
- a) hyperopia
- b) accommodation
- c) myopia
- d) magnifier
612. The difficulty of the eye to focus on very close object.
- a) hyperopia
- b) accommodation
- c) myopia
- d) magnifier
613. A converging lens use to produce an enlargement effect.
- a) hyperopia
- b) accommodation
- c) myopia
- d) magnifier
614. Ratio of the angle subtended at the eye by the image to the angle subtended by the object.
- a) angular vision
- b) angular modulation
- c) angular displacement
- d) angular magnification
615. The variation of the index of refraction with the wavelength of light.
- a) angular dispersion
- b) optical dispersion
- c) circular dispersion
- b) none of these
616. Produces deviation without dispersion.
- a) prism spectroscope
- b) fluorescence
- c) achromatic prism or lens
- d) chromatic aberration
617. Light rays of different wave lengths originating from a common point are brought to different foci by a lens.
- a) prism spectroscope
- b) fluorescence
- c) achromatic prism or lens
- d) chromatic aberration
618. A combination of a prism an achromatic lenses. Used to separate the various wavelengths in a beam of light into its spectrum.
- a) prism spectroscope
- b) fluorescence
- c) achromatic prism or lens
- d) chromatic aberration
619. A process in which substance absorbs radiant energy and remits it in wavelengths, different from those absorb.
- a) phosphorescence
- b) fluorescence
- c) achromatic prism or lens
- d) chromatic aberration
620. Occurs when the process of fluorescence continues after the exciting radiation is removed.
- a) phosphorescence
- b) fluorescence
- c) achromatic prism or lens
- d) chromatic aberration
621. The science that seeks to relate the human sense of color perception to the physical light stimulus in such a way as to produce practical graphical and numerical specification of color.
- a) colorimetry
- b) color characterization
- c) chief spectral hues
- d) complementary beams
622. Hue, saturation, brightness, or lightness of a color.
- a) primaries
- b) characteristic of color
- c) chief spectral hues
- d) complementary beams
623. What hue does the color violet, blue, green, yellow, orange, and red belong?
- a) primaries
- b) color characterization
- c) chief spectral hues
- d) complementary beams
624. Monochromatic or polychromatic pairs which when in proper proportions produce the sensation of white.
- a) primaries
- b) color characterization
- c) chief spectral hues
- d) complementary beams
625. Any three beams having wavelengths near the two extremes and the middle of spectrum. These beams when added in correct proportions produce the sensation of white.
- a) primaries
- b) color characterization
- c) chief spectral hues
- d) chromaticity coordinates
626. Specification of color quantitatively in terms of relative amounts of three artificial primaries necessary to produce a visual equivalent of that color.
- a) primaries
- b) color characterization
- c) chief spectral hues
- d) chromaticity coordinates
627. Interference fringes formed in air films between optical surfaces. The spacing of the rings provide a sensitive means of measuring
- a) constructive interference
- b) Michelson interferometer
- c) destructive interference
- d) Newton’s ring
628. An instrument that uses interference in the measurement of light wavelengths.
- a) Constructive interference
- b) Michelson interferometer
- c) Destructive interference
- d) Newton’s ring
629. The spreading of light into the region behind an obstacle.
- a) interference
- b) diffraction
- c) destructive interference
- d) Newton’s ring
630. The process by which the vibrations of a wave motion are confined to a definite pattern.
- a) polarization
- b) Malu’s law
- c) angle of polarization
- d) Newton’s ring
631. Angle at which light reflected from a substance is almost completely planed polarized.
- a) polarization
- b) Malu’s law
- c) angle of polarization
- d) angular displacement
632. Instrument for measuring optical rotation.
- a) polarization
- b) Malu’s law
- c) polarimeters
- d) light meter
633. A branch of physics that deals with the properties of electricity at rest.
- a) electrical
- b) electrostatics
- c) electrification
- d) magnetism
634. The process of rubbing two materials together and then separating them to produce charge on the materials.
- a) energy convention
- b) electrostatics
- c) electrification
- d) magnetism
635. Bodies of similar charges repel and bodies of unlike charges attract.
- a) first law of electrostatics
- b) second law of electrostatics
- c) third law of electrostatics
- d) fourth law of electrostatics
636. What charges will be produce if you rub glass rod with silk.
- a) positive charge
- b) negative charge
- c) neutral
- d) none of these
637. What charges will be produce if you rub rubber rod with fur.
- a) positive charge
- b) negative charge
- c) neutral
- d) none of these
638. The rubbing of an objects does not create energy but merely changes the electrical neutrality of the substance in contact.
- a) first law of electrostatics
- b) second law of electrostatics
- c) law of conservation of charge
- d) Newton’s law
639. Small, tightly packed, positively charged mass that consist of protons and neutrons.
- a) electrons
- b) neutrons
- c) nucleus
- d) free electron
640. Negatively charged particles.
- a) electrons
- b) neutrons
- c) nucleus
- d) free electron
641. Positive charges particles in the nucleus.
- a) neutrons
- b) proton
- c) insulator
- d) free electron
642. Particles that carry no charges.
- a) neutrons
- b) proton
- c) insulator
- d) free electron
643. Removed from an atom or atoms due to the influence of nearby atoms.
- a) neutrons
- b) proton
- c) insulator
- d) free electron
644. A substance with very few free electrons.
- a) neutrons
- b) proton
- c) insulator
- d) semiconductor
645. Materials that are ordinarily insulators but which become conductors when under particular conditions.
- a) neutrons
- b) proton
- c) insulator
- d) semiconductor
646. A device for studying electrostatic phenomena. Consist of very light gold leaf, or other thin metal foil, hanged from a contact on a flat metal plate which ends in a ball at the upper end.
- a) electroscope
- b) leaf electroscope
- c) force scope
- d) gold scope
647. A point charged that is repelled by a force of one dyne when place one cm. from an equal charged.
- a) statcoulomb
- b) coulomb
- c) partlycoulomb
- d) none of these
648. The charged transferred through any cross section of a conductor in one second by a constant current of one ampere.
- a) statcoulomb
- b) coulomb
- c) partlycoulomb
- d) none of these
649. A region in which a charge will be subjected to a force
- a) electric field
- b) electric field intensity
- c) magnetic field
- d) magnetic field intensity
650. A line so drawn in an electric field such that a tangent to it at any point gives the direction of the electric field at that point.
- a) electric field line
- b) electric field intensity
- c) line of force
- d) tangent line
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