GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
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4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
Which glasses or lens are used to correct the short sighted eye defect ?
Concave Lens
Convex Lens
Bipolar Lens
None of the above
2
In dim light, the iris ____________ the pupil to admit more light into the eye.
Contracts
Widens
No change
All of these.
3
___________ is used to correct far sightedness.
Convex lens
Concave lens
Bifocal lens
None of these
4
When smoke contains very fine particles of ash, the _______________ lights get scattered, and the smoke looks milky blue.
Bluish
Blackish
Brownish
Greyish
5
Far sightedness is also known as _____________________.
Long- sightedness
Hypermetropia
Hyperopia.
All of these
6
________________ light, like that of the sun, a powerful lamp or a laser torch can injure the retina.
Insufficient
Sufficient
Too much
7
In bright light, it ________________ the pupil so that less light goes in.
Broad
8
___________is used to correct nearsightedness.
9
__________________ look at the sun or a powerful light directly.
You can
Do not
Continuously
None
10
Which of the following are correct :
(a) The scattering of longer wavelengths of light increases as the size of the particles increases.
(b) Large particles scatter lights of all wavelengths equally well.
Only (a) is correct.
Only (b) is correct.
Both (a) and (b) are correct.
11
(a) Too little or too much light is bad for eyes.
(b) Too much light, like that of the sun, a powerful lamp or a laser torch can injure the retina.
12
Night blindness occurs due to deficiency of which vitamin?
A
B
C
D
13
Astigmatism can be corrected by using __________________.
Cylindrical lens
Plano-convex lens
14
Column II gives lens that can be use to correct the defect of vision given in column I, match them correctly.
(A)-->q, (B)-->p, (C)-->r, (D)-->s
(A)-->r, (B)-->p, (C)-->r, (D)-->q
(A)-->s, (B)-->q, (C)-->r, (D)-->p
(A)-->p, (B)-->s, (C)-->r, (D)-->q
15
The phenomenon of splitting light into its component colours due to the dependence of refractive index on___________ is called the dispersion of light.
Frequency
Wavelength
Velocity