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Rajasthan Board Class 10 (RBSE) C10humaneye — practice questions

Explore 11 free C10humaneye questions in Rajasthan Board Class 10 (RBSE) Science. Open each question or exercise to read its content, reference answers and available explanation.

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C10humaneye questions and exercises with answers

Showing questions 1–11 of 11.

The light-sensitive screen at the BACK of the eye, on which the image is formed, is called the:Read the answer and worked solution →The NEAR POINT (least distance of distinct vision) for a NORMAL adult eye is:Read the answer and worked solution →MYOPIA (short-sightedness) is corrected by using:Read the answer and worked solution →When white light passes through a PRISM, it splits into seven colours. This phenomenon is called:Read the answer and worked solution →A rainbow in the sky after a rain shower is formed by:Read the answer and worked solution →Match each eye term to its meaningRead the answer and worked solution →Match each part of the eye to its jobRead the answer and worked solution →Myopia or hypermetropia?Read the answer and worked solution →Put the spectrum in orderRead the answer and worked solution →Key in the eye numberRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →

Worked practice questions

The light-sensitive screen at the BACK of the eye, on which the image is formed, is called the:

  1. Cornea, at the front of the eye
  2. Retina, at the back of the eye
  3. Iris, between the cornea and lens
  4. Pupil, the opening for light entry
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Correct answer: B. Retina, at the back of the eye

The retina is the light-sensitive screen at the back of the eye. It contains rods (dim light) and cones (colour). The optic nerve carries signals from retina to brain.

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The NEAR POINT (least distance of distinct vision) for a NORMAL adult eye is:

  1. 25 cm from the eye
  2. 2.5 metres from the eye
  3. 2.5 cm from the eye
  4. Infinity, all comfortable
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Correct answer: A. 25 cm from the eye

For a normal adult eye, the near point is 25 cm. The far point is INFINITY. Below 25 cm vision becomes blurry due to limits of accommodation.

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MYOPIA (short-sightedness) is corrected by using:

  1. Convex lens spectacles for clearer vision
  2. Cylindrical lens spectacles always
  3. Concave (diverging) lens spectacles
  4. Bifocal spectacles always required
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Correct answer: C. Concave (diverging) lens spectacles

Myopia (image forms in front of retina; far blurry, near clear) is corrected by CONCAVE (diverging) lens spectacles, which diverge incoming parallel rays so they focus correctly on the retina.

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More Science topics

Light - Reflection and RefractionLife ProcessesScienceOur EnvironmentChemical Reactions and EquationsThe Human Eye and the Colourful WorldElectricityCarbon and its Compounds