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Content Curator | Updated On - May 7, 2024
AP ECET 2021 Question Papers are helpful in getting familiarised with the pattern, difficulty level, and the type of questions asked in the paper. AP ECET 2021 was conducted for three branches - Engineering, Pharmacy, and BSc. Mathematics and as per the experience of test takers, the paper was of moderate difficulty level. Check AP ECET 2023 Syllabus
AP ECET 2021 Question paper had a total of 200 questions asked in each paper across the three branches. For the benefit of the students AP ECET 2021 Question Paper with Answer Key is provided below.
Also Check:AP ECET 2021 Question Paper PDFs
Candidates can download question paper links from the table below:
AP ECET 2021 Question Paper | Question Paper PDF |
---|---|
Agricultural Engineering | Check Here |
Mathematics | Check Here |
Ceramic Technology | Check Here |
Chemical Engineering | Check Here |
Civil Engineering | Check Here |
Computer Science and Engineering | Check Here |
Electronics and Communication Engineering | Check Here |
Electrical and Electronics Engineering | Check Here |
Electronics and Instrumentation Engineering | Check Here |
Mechanical Engineering | Check Here |
Metallurgical Engineering | Check Here |
Mining Engineering | Check Here |
Pharmacy | Check Here |
AP ECET 2021 Questions
1. Let $M$ and $m$ respectively denote the maximum and the minimum values of $[f(\theta)]^{2}$, where $f(\theta)=\sqrt{a^{2} \cos ^{2} \theta+b^{2} \sin ^{2} \theta}$
$+\sqrt{a^{2} \sin ^{2} \theta+b^{2} \cos ^{2} \theta}$. Then $M-m=$
- $a^2 + b^2$
- $(a -b)^2$
- $a^2 b^2$
- $(a + b)^2$
2. The half-life periods of a first order reaction at $300\, K$ and $400\, K$ are $50\, s$ and $10\, s$ respectively.
The activation energy of the reaction in $kJ \; mol^{-1}$ is (log 5 = 0.70)
- 4
- 8
- 16.1
- 20.1
3. If $I_{n} = \int \frac{\sin nx}{\sin x} dx $ for $n = 1, 2 , 3,...,$ then $I_6$ =
- $\frac{3}{5} \sin3x + \frac{8}{3} \sin^{5} x -\sin x +c $
- $\frac{2}{5} \sin 5x - \frac{5}{3} \sin^{3} x - 2 \sin x +c $
- $\frac{2}{3} \sin 5x - \frac{8}{3} \sin^{5} x + 4 \sin x +c $
- $\frac{2}{5} \sin 5 x -\frac{8}{3} \sin^{3} x + 4 \sin x +c $
4. A solution is prepared by dissolving $10 \,g$ of a non-volatile solute (molar mass, $'M^{\prime} g mol ^{-1}$ ) in $360\, g$ of water. What is the molar mass in $g\, mol ^{-1}$ of solute if the relative lowering of vapour pressure of solution is $5 \times 10^{-3}$ ?
- 199
- 99.5
- 299
- 149.5
5. A solid copper sphere of density $\rho$, specific heat capacity $C$ and radius $r$ is initially at $200\, K$. It is suspended inside a chamber whose walls are at $0\, K$. The time required (in (is) for the temperature of the sphere to drop to $100 \,K$ is
($\sigma$ is Stefan's constant and all the quantities are in SI units)
- $48 \frac{r\rho C}{\sigma}$
- $\frac{1}{48} \frac{r\rho C}{\sigma}$
- $\frac{27}{7} \frac{r\rho C}{\sigma}$
- $\frac{7}{27} \frac{r\rho C}{\sigma}$
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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