English

Give Technical Term: the Type of Lens Used to Correct Myopia is

Advertisements
Advertisements

Question

Give Technical Term:
The type of lens used to correct myopia is

One Word/Term Answer
Advertisements

Solution

Concave Lense

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: The Nervous System and Sense Organs - Give Technical Terms

APPEARS IN

ICSE Biology [English] Class 10 ICSE
Chapter 8 The Nervous System and Sense Organs
Give Technical Terms | Q 19.2
ICSE Biology [English] Class 10 ICSE
Chapter 8 The Nervous System and Sense Organs
Give Technical Terms | Q 17

RELATED QUESTIONS

List three common refractive defects of vision. Suggest the way of correcting these defects.


A student is unable to see clearly the words written on the black board placed at a distance of approximately 3 m from him. Name the defect of vision the boy is suffering from. State the possible causes of this defect and explain the method of correcting it.


A young man has to hold a book at arm's length to be able to read it clearly. The defect of vision is:
(a) astigmatism
(b) myopia
(c) presbyopia
(d) hypermetropia


To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses?


Explain the terms ‘adaptation’ and ‘accommodation’ with reference to the eye.


Anuja cannot see the blackboard writing but she can see nearby things.
(a) What is the eye defect she is suffering from?
(b) State the possible reason for her defect.
(c) How is it corrected


Give Reason:

Deficiency of vitamin A causes night blindness.


Study the following diagram carefully and then answer the questions that follow. The diagram is depicting a defect of the human eye :

(i) Identify the defect shown in the diagram.
(ii) Give two possible reasons for the above defect.


A person needs a lens of power –4.5 D for correction of her vision.

  1. What kind of defect in vision is she suffering from?
  2. What is the focal length of the corrective lens?
  3. What is the nature of the corrective lens?

A teacher drew the diagram of the heart on the blackboard and told the students to copy it in their notebooks. Mahesh couldn't see the diagram clearly as it appeared blurred to him.

  1. Name the defect of the eye Mahesh is suffering from.
  2. Where is the image formed in this defect?
  3. Mahesh consults an eye doctor and is prescribed suitable lenses to correct the defect. Which type of lens do his spectacles have?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×