English
Maharashtra State BoardSSC (English Medium) 10th Standard

Complete the following table by observing the given figures: Figure → Points ↓ (a) Name of the defect (b) Position of the image (c) Lens used to correct the defect ______ ______ ______ ______ ______

Advertisements
Advertisements

Question

Complete the following table by observing the given figures:

Figure
Points
(a) Name of the defect ______ ______
(b) Position of the image ______ ______
(c) Lens used to correct the defect ______ ______
Complete the Table
Advertisements

Solution

Figure
Points
(a) Name of the defect Myopia
(near sightedness)
Hypermetropia
(Far sightedness)
(b) Position of the image In front of the retina Behind the retina
(c) Lens used to correct the defect Concave lens Convex lens
shaalaa.com
  Is there an error in this question or solution?
2023-2024 (March) Official

RELATED QUESTIONS

Given below is a diagram showing a defect of human eye. Study it and answer the following questions.

(i) Name the defect shown in the figure.
(ii) Give reason for this defect of eye in human being.
(iii) Name the type of lens used to correct the eye defect.


What is myopia?


A student is unable to see clearly the words written on the blackboard placed at a distance of approximately 4 m from him. Name the defect of vision the boy is suffering from. Explain the method of correcting this defect.

Draw ray diagram for the:-

(i) defect of vision and also

(ii) for its correction.


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?


Name the defect of vision in a person: 

whose far point is less than infinity


What is the scientific name of 

short-sightedness


Name one defect of vision (or eye) which cannot be corrected by any type of spectacle lenses.


Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. 

 Is she short-sighted or long-sighted?


A student sitting in the last row of the class-room is not able to read clearly the writing on the blackboard. 

 Name the type of defect he is suffering from.


A student sitting in the last row of the class-room is not able to read clearly the writing on the blackboard. 

 How can this defect by corrected?


Explain with the help of labelled ray-diagram, the defect of vision called hypermetropia, and hot it is corrected by a lens. 


A person suffering from the eye-defect myopia (short-sightedness) can see clearly only up to a distance of 2 metres. What is the nature and power of lens required to rectify this defect?


 A person having short-sight cannot see objects clearly beyond a distance of 1.5 m. What would be the nature and power of the corrective lens to restore proper vision?


The defect of vision in which the eye-lens of a person gets progressively cloudy resulting in blurred vision is called:
(a) myopia
(b) presbyopia
(c) colourblindness
(d) cataract


The near point of a long-sighted person is 50 cm from the eye.
(a) Can she see clearly an object at:
(i) a distance of 20 cm?
(ii) at infinity?


A person can read a book clearly only if he holds it at an arm's length from him. Name the defect of vision:
 if the person is an old man


Name the following:

The eye defect caused due to shortening of the eye ball from front to back.


A person is unable to read a book placed closer than 1 meter from his eyes. Identify the defect of vision in his eyes. Draw the ray diagrams to show the defect of vision and its correction.


What eye defect is hypermetropia? Describe with a ray diagram how this defect of vision can be corrected by using an appropriate lens.


Draw a ray diagram to show how Hypermetropia is defect can be corrected using a lens.


Name the following:
The photosensitive pigment present in the rod cells of the retina.


Given below is a diagram depicting a defect of the human eye? Study the same and answer the question that follow:

Give two possible reasons for this defect of the eye in human beings.


Given below is a diagram depicting a defect of the human eye? Study the same and answer the question that follow:

Draw a labeled diagram to show how the above mentioned defect is rectified using the lens named above.


The near point of the eye of a person is 50 cm. Find the nature and power of the corrective lens required by the person to enable him to see clearly the objects placed at 25 cm from the eye?


Give Reason:

When you enter into a dark room from bright because of sunlight, you can not see things for a few seconds.


Differentiate between:

Short-sightedness and Long-sightedness.


Explain the Term: Hypermetropia


Explain the Term: Presbyopia


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


Given below is a diagrammatic representation of a defect of the human eye:

(i) Identify the defect.
(ii) Mention two reasons for the above defect.
(iii) State how the defect can be rectified.
(iv) Name the part of the eye responsible for maintaining the shape of the eyeball.


Due to elongation of _______ and increase in curvature of the eye lens, a person cannot see distant objects clearly.


Observe the given below the figure, correct it and explain and write about the concept depicted in this figure.


Myopia and hypermetropia can be corrected by:


Assertion: Concave mirrors are used as reflectors in torches, vehicle head lights and in search lights.

Reason: When an object is placed beyond the center of curvature of a concave mirror, the image formed is real and inverted.


Myopia may arise due to ____________.


Observe the figure and answer the following questions: 

  1. Name the defect of vision represented in the above figure.
  2. State the reasons for this defect.
  3. How is it corrected?
  4. Draw the diagram to show the correction of this defect.

Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×