NCERT/Class 10/Science/The Human Eye and the Colourful World

The Human Eye and the Colourful World

Class 10 · Science

150 questions50 easy50 medium50 hard

Sample Questions

Q1.The muscles that control the shape of the eye lens are called:

  • ARetinal muscles
  • BIris muscles
  • CCiliary muscles
  • DOptic muscles

Q2.What is the transparent front part of the eye that helps in focusing light?

  • ARetina
  • BCornea
  • CIris
  • DPupil

Q3.The retina of the human eye contains:

  • AOnly rods
  • BOnly cones
  • CBoth rods and cones
  • DNeither rods nor cones

Q4.The apparent position of stars shifts slightly due to atmospheric refraction. This phenomenon also makes stars appear to be:

  • ASlightly lower in the sky than their true position
  • BSlightly higher in the sky than their true position
  • CAt exactly their true position
  • DInvisible to the naked eye

Q5.Which part of the eye controls the amount of light entering it?

  • ACornea
  • BLens
  • CIris
  • DRetina

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

MoonNewton's experimentRayleigh scatteringSnell's lawSunTyndall effectVIBGYORangle of deviationangle of incidenceangle of prismangular dispersionantisolar pointapparent depthapparent position of starsapparent shapeaqueous humouratmosphereatmospheric refractionbifocal lensbinocular visionblind spotblue skycausesciliary musclescolloidcombination of lensescomparisonconcave lensconescontact lensesconvex lenscorneacorrectioncritical angledanger signalsdefects of visiondiagnosisdispersiondispersive powerearly sunriseelevationeye lensfar pointfocal lengthfoveageometryglassglass slabgreen flashhuman eye structurehypermetropiaimage formationinternal reflectionirislens formulalens powerminimum deviationmiragemyopianear pointoptic nerveplanetspoint sourcepower of accommodationpresbyopiaprimary rainbowprismpupilrainbowreading glassesrecombinationred colourreflectionrefractionrefractive indexretinarodsscatteringscattering intensityscattering of lightsecondary rainbowsensitivityspectrumsunrise sunsetthin prismtotal internal reflectiontwinklingtwinkling of starsviolet lightvisible spectrumvitreous humourwater dropletswavelengthwhite cloudswhite light

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