English

The image of the object in the human eye is formed on the cross screen. - Science and Technology 1

Advertisements
Advertisements

Question

The image of the object in the human eye is formed on the cross screen.

Options

  • Right

  • Wrong

MCQ
True or False

Solution

The image of the object in the human eye is formed on the cross screen- Wrong

shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Lenses - Right or Wrong sentence

APPEARS IN

RELATED QUESTIONS

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


Compare the following: Choroid and retina


Write short notes on the following: Retina 


The optical prescription for a pair of spectacles is :
Right eye : −3.50 D
Left eye : −4.00 D 

Are these lenses thinner at the middle or at the edges?


A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D 

State whether these lenses are thicker in the middle or at the edges.


What job does the pupil of the eye do?


What is the principal function of the eye-lens? 


What is the:  

near point of a normal human eye?


Name the part of our eyes which helps us to focus near and distant objects in quick succession.


What change is made in the eye to enable it to focus on objects situated at different distances? Illustrate your answer with the help of diagrams.  


There are two types of light-sensitive cells in the human eye: 

Where are they found? 


 If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?


How much is our field of view: 

with one eye open?


How much is our field of view: 

 with both eyes open?


Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively. 

Which of these persons cannot donate eyes? 


The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish


Give scientific reason:

We cannot clearly see an object kept at a distance less than 25 cm from the eye.


Name the following:
White part of the eye.


Give the main function of the following:
Fovea centralis    


Name the following:
The most sensitive region of the retina.


State the Function:
Ear drum


Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:


For a healthy human eye, the distant point is infinite distance.


Vision defect that increases distance between the lens of the eye and retina of the eye is termed as myopia.


Write an Explanation.

Minimum distance of distinct vision


The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.


Write the function of the human eye and label parts of the figure given below.


______ is tough and thick white sheath that protects the inner parts of the eye.


Why the human eye is compared with camera?


When light rays enter the eye, most of the refraction occurs at the ____________.


The pigmented circular area seen in front of the eye:


We cannot distinguish colours in dim light. Explain giving suitable reasons.


From where the following nerves arise.

Optic nerve


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

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 accomadation

Name the following:

Kind of retinal cells sensitive to dim light.


Write the main functional activity of the following structure.

Ciliary body and suspensory ligament


Give reason:

Blind spot is considered as 'area of no vision'.


With reference to human eye answer the question that follow:

Name the part of the eye associated with the regulation of the shape of lens.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×