Tiwari Academy Discussion

Asked: October 20, 2020In: Class 10

A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

NCERT Solution for Class 10 Science Chapter 10 Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-186 Questions No-17

Chandan Guptas

Asked: October 20, 2020In: Class 10

What is meant by power of accommodation of the eye?

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 Intext Questions Page No-190 Questions No-1

Chandan Guptas

Asked: October 20, 2020In: Class 10

A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-190 Questions No-2

Chandan Guptas

Asked: October 20, 2020In: Class 10

What is the far point and near point of the human eye with normal vision?

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-190 Questions No-3

Chandan Guptas

Asked: October 20, 2020In: Class 10

A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

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 Intext Questions Page No-190 Questions No-4

Poll

Chandan Guptas

Asked: October 20, 2020In: Class 10

The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-197 Questions No-1

Poll

Chandan Guptas

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

Poll

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

A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

What is meant by power of accommodation of the eye?

A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?

What is the far point and near point of the human eye with normal vision?

A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to

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?

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