AP Polycet Key 2026

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AP Polycet Key 2026 Download

AP POLYCET 2026 Mathematics Key with Short Explanations [Set B]

Q. No.	Answer	Explanation/Hint
1	(4) 0∘	Using 2sinAcosA=2sinA, we get cosA=1, so A=0∘.
2	(3) 1	This is the identity sin(60∘+30∘)=sin90∘=1.
3	(4) 40/3	tan60∘=40/d⟹3=40/d⟹d=40/3. +1
4	(4) 30∘	Let height be h, shadow is 3h. tanθ=h/(3h)=1/3⟹θ=30∘.
5	(2) 1/52	There is only 1 Queen of Diamonds in a deck of 52.
6	(4) 1/2	Vowels in ‘MOBILE’ are O, I, E (3 out of 6). 3/6=1/2.
7	(2) 14	400×0.035=14.
8	(1) 0.95	P(not E)=1−P(E)=1−0.05=0.95.
9	(2) 69.43	Calculated using ∑fixi/∑fi from the provided table. +1
10	(1) 3.286	Using the Mode formula l+(2f1−f0−f2)f1−f0×h on the 3-5 class. +1
11	(3) 55-60	Median class is where cumulative frequency reaches N/2=15.
12	(4) 1.35	Arranged: 1.02, 1.2, 1.3, 1.35, 1.4, 1.6, 1.7. Middle value is 1.35.
13	(1) 423	LCM(12, 21, 15) = 420; HCF = 3. Sum = 423.
14	(4) ∞	There are infinite rational numbers between any two real numbers.
15	(3) 2	18=32. Multiplying by 2 gives 6 (rational).
16	(1) 1.02	101÷99=1.020202…
17	(1) 3/2	Product of zeroes =−(−6)/a=4⟹6/a=4⟹a=1.5 or 3/2.
18	(4) −6/5	k(2)2+3(2)+k=0⟹5k+6=0⟹k=−6/5.
19	(2) p=r	For reciprocals 2 and 1/2, the product is 1, so r/p=1⟹p=r.
20	(4) ab=6	For parallel lines: a/3=2/b=9/18⟹ab=6.
21	(1) Unique	Lines x=0 (y-axis) and y=3 intersect at exactly one point (0, 3).
22	(3) 20 m, 16 m	L=W+4; L+W=36. Solving gives 20 and 16.
23	(1) x=19,y=−14	Solved via substitution or elimination.
24	(3) k<4	For distinct roots, b2−4ac>0⟹16−4k>0⟹4>k.
25	(1) 5, 12	x2+(x+7)2=132. Solving the quadratic gives x=5. +1
26	(1) x2−6x+4=0	Roots are 3±5. Sum = 6, Product = 9−5=4.
27	(2) (x+1)2=2(x−3)	This expands to x2+2x+1=2x−6, which is a quadratic.
28	(3) 17	Common difference is 5. 12+5=17.
29	(2) 3:1	Based on a+17d/a+10d=3/2.
30	(1) -320	S16=216[2(10)+15(−4)]=8(20−60)=−320.
31	(3) secα	(3−2)2+(0−tanα)2=1+tan2α=sec2α.
32	(2) (1, 7)	[(5−3)/2,(3+11)/2]=(1,7).
33	(1) 2nd	Negative x and positive y are in the second quadrant.
34	(4) 5:1	Ratio is −x1:x2=−5:−1=5:1.
35	(4) 2+2	Sides are 1, 1, and 2. Sum =2+2.
36	(3) 9	Using Thales theorem: LC/AC=MC/BC⟹(x+3)/2x=(x+5)/(2x+3).
37	(2) 15 cm	Perimeter ratio = side ratio. 7.5/P=2/4⟹P=15.
38	(2) 135∘	Exterior angle x=70∘+65∘=135∘.
39	(3) 13 m	Right triangle with sides 12m and 5m (11−6). Hypotenuse = 13.
40	(3) 12 cm	152−92=225−81=144=12.
41	(2) Equal	Tangents from an external point to a circle are always equal.
42	(1) 154/3	Area =(30/360)×π×142=(1/12)×(22/7)×196=154/3.
43	(2) 4:9	Area ratio is the square of the circumference ratio: 22:32=4:9.
44	(2) 121 cm2	TSA =πrl+2πr2=π(3.5)(4)+2π(3.5)2=44+77=121. +1
45	(1) 1:3:2	Vol. Ratio: 31πr2h:πr2h:32πr3. Since h=r, ratio is 1/3:1:2/3.
46	(4) 36	4πr2=48⟹πr2=12. TSA of hemisphere =3πr2=3(12)=36.
47	(3) 1	cot30∘=3⟹3a=3⟹a=1.
48	(2) 105∘	B=45∘; A−B=60∘⟹A−45=60⟹A=105∘.
49	(4) a/b	sinθ=1−cos2θ=1−(b2−a2)/b2=a2/b2=a/b.
50	(3) k2+1k2−1	Standard identity derived from cosec2θ−cot2θ=1.

AP POLYCET 2026 Physics Key with Short Explanations[Set B]

Q. No.	Answer	Explanation/Hint
51	(1) n times	Magnetic field is proportional to the number of turns. +1
52	(4) Bar magnet	A solenoid creates a magnetic field identical to a bar magnet.
53	(2) Oersted	Hans Christian Oersted discovered electromagnetism in 1820.
54	(4) MRI scanning	Magnetic Resonance Imaging uses internal magnetic fields.
55	(1) Live wire	Red insulation traditionally denotes the live (phase) wire.
56	(2) Electric fuse	Fuses break the circuit during overloading to protect appliances.
57	(2) Parallel	Domestic appliances are connected in parallel to ensure independent operation.
58	(3) Increases heavily	Short circuits cause resistance to drop, spiking the current.
59	(4) 220 V	Standard domestic voltage in India is 220V.
60	(3) Wood	Wood does not allow light to pass through.
61	(1) 33∘	Angle of incidence equals angle of reflection (i=r). +1
62	(3) R=2f	Radius of curvature is twice the focal length.
63	(2) -20 cm	m=−v/u=−2⟹v=2u=−60. 1/f=1/v+1/u⟹f=−20. +1
64	(1) r>i	Light bends away from the normal when entering a rarer medium.
65	(1) 6 m	Apparent depth = Real depth /n=8/(4/3)=6 m. +1
66	(1) Biconcave	Surfaces curved inward describe a biconcave lens.
67	(3) At principal focus	Parallel rays from infinity converge at the focus.
68	(2) 60 cm	1/v−1/u=1/f⟹1/v−1/(−30)=1/20⟹v=60. +1
69	(1) Convex 4D, f=0.25	f=1/P=1/4=0.25 m. Convex power is positive.
70	(2) 25 cm	Standard least distance for distinct vision in adults.
71	(4) Accommodation	The eye’s ability to focus on different distances.
72	(1) Pupil	The pupil adjusts size to control light entry.
73	(3) In front of retina	Myopia causes light to focus before reaching the retina.
74	(3) Cornea has rods/cones	Rods and cones are in the retina, not the cornea.
75	(2) Dispersion	Splitting white light into VIBGYOR.
76	(4) Atm. refraction	Changes in air density cause starlight to bend.
77	(4) Violet	Violet has the shortest wavelength and highest deviation.
78	(1) Red	Red light has the longest wavelength in the visible spectrum.
79	(1) Least scattered	Long wavelength red light is least scattered by particles. +1
80	(3) Coulomb	S.I. unit of charge. +1
81	(2) Only (b) is true	Voltmeter is parallel; Ammeter must be in series. +1
82	(1) 1 coulomb	Q=I×t⟹1A×1s=1C.
83	(4) Potential difference	Definition of Voltage (V=W/Q).
84	(4) 2 A	I=V/R=6/3=2 A.
85	(2) R∝1/A	Resistance is inversely proportional to cross-sectional area.
86	(1) 24 Ω	Highest resistance is achieved in series (2+4+6+12=24).
87	(2) Prop. to resistance	H=I2Rt.
88	(4) Electric current	P=V×I.
89	(3) 3.6×106 J	1000W×3600s=3.6MJ.
90	(4) Outside S to N	Outside a magnet, lines go from North to South.

AP POLYCET 2026 Chemistry Key with Short Explanations[Set B]

Q. No.	Answer	Explanation/Hint
91	(4) H2O	Water is a covalent compound.
92	(3) Catenation	Carbon’s ability to form long chains with itself.
93	(2) CH4	Methane is the primary component of biogas.
94	(2) -CHO	Functional group for aldehydes.
95	(2) Substitution	Chlorine replaces a hydrogen atom in methane.
96	(1) Oxidation	Adding oxygen to ethanol converts it to ethanoic acid.
97	(3) Ethyne	Also known as acetylene, used in oxy-acetylene welding.
98	(1) 5-8% Acetic acid	Standard composition of vinegar.
99	(3) Methyl alcohol	Methanol is added to ethanol to make it undrinkable.
100	(2) CH3OH(l)	Methanol synthesis from syngas.
101	(4) Ca(OH)2	Slaked lime is used for white washing.
102	(4) All of these	All listed reactions involve a single reactant breaking down.
103	(2) MnO2 reduced	MnO2 loses oxygen to become MnCl2.
104	(2) Antioxidants	These prevent the oxidation of fats and oils.
105	(4) Displacement	Aluminum displaces iron from its oxide.
106	(3) CH3COOH	Acetic acid is a weak acid and dissociates partially.
107	(1) Gastric juice	Highly acidic environment (pH ≈ 1.5-3.5).
108	(3) Ca hydroxyapatite	The crystalline mineral that makes up tooth enamel.
109	(2) Lactic acid	Found in curd and fermented milk products.
110	(4) Neutral	Strong acid + Strong base results in a pH of 7.
111	(2) NaOH,Cl2,H2	Electrolysis of brine produces these three.
112	(3) Soda + Tartaric	Tartaric acid neutralizes the bitter sodium carbonate.
113	(1) Na2CO3	Washing soda (soda ash) is a key ingredient in glass.
114	(3) CaSO4⋅21H2O	Calcium sulfate hemihydrate.
115	(4) All of these	Carbon, Sulfur, and Iodine are all non-metals.
116	(3) Both HCl/NaOH	Al2O3 is amphoteric (reacts with acids and bases).
117	(3) Na, Ca, Mg, Al	Highly reactive metals at the top of the activity series.
118	(2) Hg	Cinnabar is Mercury(II) sulfide (HgS).
119	(1) Anode	Impure metal dissolves from the anode.
120	(4) All of these	Galvanizing, anodizing, and alloying all prevent rust.

How to Download AP POLYCET 2026 Official Answer Key [Soon]

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To download the AP POLYCET answer key, candidates can follow these step-by-step instructions:Start by visiting the official AP POLYCET website i.e. polycetap.nic.in.
Look for the link labelled ‘AP Polycet 2024 Answer Key’ on the homepage or under the ‘Notifications’ or ‘Examinations’ section.
Once you find the link, click on it. You may need to select your exam paper code if multiple keys are released for different exams.
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AP Polycet Question Paper 2026 Download