Question is available with Mero Eye Group

1. Answers for set-5
1.b
Lipid layer- prevents evaporation
Mucin layer- maintains stability
2. c
Secondary function- depression
Tertiary function- abduction
3. a
4. b
5. a
6. a
Cone helps in day light vision so if cone deficiency is present, there will be difficult for bright light
vision.
7. d
8. c
Due to absence of lens in aphakic patient, there is loss of accommodation
9. c
Posterior focal length- 22.9mm
10. b
11. a
In case of JCC, after the axis is corrected then only power is corrected.
12. b
Iridodyalysis- iris tear near the ciliary body
Rubeosis iridis- neovascularization of iris
13. a
@ posterior pole- 0.25mm
14. b
Palpebral & limbal conjunctiva are adherent.
15. c

2. 16. b
Cornea have positive electrical potential
17. a
Gentamycin- topical antibiotics
Interferon- antiviral
18. d
Near point- punctum proximum
Range of accommodation- difference between far point & near ppoint of accommodation
19. c
20. a
21. c
Arden ration- light peak: dark tough
22. c
23. b
Flattening(1mm)- +6D
24. d
25. a
Around limbus- ciliary congestion
26. a
Rods and cones are absent at blind spot
27. d
Near point-25cm
28. c
29. d
Fungal- satellite lesions
30. a
Protanopia- red color deficiency
Deuteranopia- green color deficiency
31. b
32. c

3. Visual acuity is usually measured at 20ft/6m.
33. a
Against-the rule astigmatism- vertical meridian of eye is flatter than horizontal meridian
Oblique astigmatism- two meridians perpendicular to each other.
34. d
Evisceration- all intraocular contents except sclera & optic nerve are removed.
35. b
36. a
37. c
Cornea- 1.37
Lens- 1.39
Aqueous=vitreous=1.336
38. a
39. b
Lenticonus- conical projection of lens center
40. a
41. b
R(max)=𝑢2
/g =100 (𝜃 = 45°)
H(max)= 𝑢2
/2g*sin2
𝜃
= 𝑢2
/2g (where 𝜃 = 90˚)
= 100/2 = 50 m
42. a
For min acceleration, force should be minimum
So F(min)= 𝐹1-𝐹2= 4-2 = 4N
F= m𝑎 𝑚𝑖𝑛
𝑎 𝑚𝑖𝑛=4/2 = 2m/s2
43.c
If angle of incidence is equal to polarizing angle, the reflected and refracted rays are mutually
perpendicular.
44.c

4. Linear momentum is conserved in every collision, but energy is conserved in only elastic collision.
45.a
When one side of equi convex lens is silvered, it behaves as concave mirror & convex mirror in case of
equiconcave lens.
46. c
P=
work done
time taken
= qv/t = IV
P= 0.5*6 = 3
47. d
R=𝛿*l/A
Here, volume always remains same so,
R= 𝛿 (l*A)/(A*A) = 𝛿𝑉/A2
R∝ 1/A2
R∝ 1/(𝜋d2
/4)2
R∝ (1/d4
)
48. c
Work done by magnetic force on charged particle is zero. Hence, magnetic field can change any direction
of motion of charged particles. But, when moving charged particle is subjected to electric field, its K.E
changes.
49. b
K.E=
1
2
mv2
= p2
/2m
P=√2𝑚𝐸
For equal KE,
P∝ √ 𝑚
50. c
𝐶−0
100−0
=
𝐹−32
212−32
C/100 = (-40-32)/180
C= -40 ˚C
51. d
Anti knocking property is measured in terms of octane number.
Higher the octane number, better is the fuel.

5. 52. a
Stability of carbocation follows order 3˚>2˚>1˚.
So, 3˚ alcohol undergo dehydration more easily.
53. a
54. c
Activation energy: excess of energy the reactant requires to yield product. Hence, the catalyst lowers
activation energy.
55. b
Surface tension/ angle of contact decreases with temperature increase but surface tension of molten Cu or
Cd increases with rise in temperature.
56. b
Principal quantum number- size of orbit
Azimuthal quantum number- shape of orbital
Spin quantum number- spin of electron
57. a
Electrophile: electrone deficient species
Nucleophile: nucleus/hydrogen loving species
58. d
Chile salt petre- NaNO3
Indian salt petre- KNO3
Rock salt petre- NaCl
59. b
60. b
61. b
62. d
Hemixis: also called purification act due to reconstitution of macronucleus in paramecium without any
change in micronucleus.
Autogamy: self fertilization
Endomixis: also called parthenogenesis; sexual reproduction without fertilization
Cytogamy- general fertilization of cell
63. a

6. Archeocytes- largest amoebocytes (can be converted into any other type of cell)
Trophocytes- nutritive cell
Thesocytes- contains reserve food
Collencytes- connecting cell; secretes collagen fiber
64. b
Venus flower basket- Euplectella
Boring sponge- cliona
Mermaid’s gloves- chalina
Urn sponge- sycon
65. c
Jelly fish- coelenterata
Shell fish- arthopoda
Cray fish- arthopoda
Silver fish- arthopoda
Cuttle fish- Mollusca
Devil fish- Mollusca
Star fish- Echinodermata
All these are false fishes.
66. b
Coelenterata- mouth
Platyhelminthes- solenocytes/flame cells/protonephridics
Nemathelminthe- renette cell/H-shaped cell
Mollusca- keber’s gland/pericardial gland
67. c
Dracunuculus medinesis also called guinea worm/ fiery serpent/ medina worm is so large that one can feel
it by touching on skin. It lives in sub-cutaneous tissue forming blisters.
68. c
Septal nephridia- 15th
to last
Integumentary nephridia- 3rd
to last
69. a

7. 70. c
71. a
Presence of oil secreting gland containing myrocine enzyme is important anatomical feature. Ovary in
uniocular at beginning but binocular at maturity due to false septum called replum. Obliquely placed
ovary belongs to family solanaceae.
72. a
Alcohol fermentation takes place in presence of yeast (zymase).
73. b
Nucleoside+phosphate= nucleotide= nucleic acid
74. c
Pteridophytes are vascular cryptogams. Also known as snake of plant kingdom.
75.a
Free living bacteria- azotobactor(aerobic), clostridium (anaerobic)
Symbiotic bacteria- rhizobium
N2 fixing bacteria- converts atmospheric N2 into biologically acceptance form in soil
76. c
Endoplasmic reticulum- enzyme factory of cell
Peptine of cell
Endoskeleton
Membrane factory
Membrane protein factory
77. b
78. b
79. c
80. d
81. a
if alcohol is consumed in empty stomach, 80% of it is absorbed by small intestine while 20% by stomach.
82. a
83. d
84. c
85. b

8. Smallest cells- sperm cell
86. c
87. d
Breast cancer- second most common cancer after cervix.
88. a
89. d
Sedative- induce sleep
Narcotics- plant based product such as opium, heroine
Hallucinogens- cause hallucinations, which can alter a person's perception of reality
90. c
91. d
92. c
93. b
The living part of the hair is the very bottom part surrounding the papilla, called the bulb. The cells of the
bulb divide every 23 to 72 hours, remarkably faster than any other cell in the body.
94. c
3 tiny muscles named malleus, incus & stapes are found in ear.
95. b
A layer of very fine calcium crystals is among the structures in the inner ear that help to regulate balance.
Balance is a choreographed arrangement that takes sensory information from a variety of organs and
integrates it to tell the body where it is in related to gravity and the earth.
96. b
97. a
Axon- longer fibres
98. c
99. b
100. d