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Asked: October 20, 2020In: Class 10

The least distance of distinct vision for a young adult with normal vision is about

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-3

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Chandan Guptas

Asked: October 20, 2020In: Class 10

The change in focal length of an eye lens is caused by the action of the

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-4

Lara Mukherjee

Asked: October 20, 2020In: Class 10

A person needs a lens of power –5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-5 (i) distant vision, and (ii) near vision?

Lara Mukherjee

Asked: October 20, 2020In: Class 10

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-6

Lara Mukherjee

Asked: October 20, 2020In: Class 10

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-7

The least distance of distinct vision for a young adult with normal vision is about

The change in focal length of an eye lens is caused by the action of the

A person needs a lens of power –5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

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