Undergraduate MCQ & Objective Questions
The undergraduate level is a crucial phase in a student's academic journey, especially for those preparing for school and competitive exams. Mastering this stage can significantly enhance your understanding and retention of key concepts. Practicing MCQs and objective questions is essential, as it not only helps in reinforcing knowledge but also boosts your confidence in tackling important questions during exams.
What You Will Practise Here
Fundamental concepts in Mathematics and Science
Key definitions and theories across various subjects
Important formulas and their applications
Diagrams and graphical representations
Critical thinking and problem-solving techniques
Subject-specific MCQs designed for competitive exams
Revision of essential topics for better retention
Exam Relevance
Undergraduate topics are integral to various examinations such as CBSE, State Boards, NEET, and JEE. These subjects often feature a mix of conceptual and application-based questions. Common patterns include multiple-choice questions that assess both theoretical knowledge and practical application, making it vital for students to be well-versed in undergraduate concepts.
Common Mistakes Students Make
Overlooking the importance of understanding concepts rather than rote memorization
Misinterpreting questions due to lack of careful reading
Neglecting to practice numerical problems that require application of formulas
Failing to review mistakes made in previous practice tests
FAQs
Question: What are some effective strategies for solving undergraduate MCQ questions?Answer: Focus on understanding the concepts, practice regularly, and review your answers to learn from mistakes.
Question: How can I improve my speed in answering objective questions?Answer: Time yourself while practicing and gradually increase the number of questions you attempt in a set time.
Start your journey towards mastering undergraduate subjects today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Your success is just a question away!
Q. What is the pKa range of most carboxylic acids?
A.
0-1
B.
4-5
C.
8-9
D.
10-11
Show solution
Solution
Most carboxylic acids have a pKa range of about 4-5.
Correct Answer:
B
— 4-5
Learn More →
Q. What is the pKb value of a weak base like aniline? (2020)
A.
Less than 5
B.
Around 9
C.
Around 14
D.
Greater than 15
Show solution
Solution
Aniline has a pKb value around 9, indicating it is a weak base.
Correct Answer:
B
— Around 9
Learn More →
Q. What is the pKb value of a weak base like methylamine?
A.
Less than 7
B.
Equal to 7
C.
Greater than 7
D.
Undefined
Show solution
Solution
Methylamine is a weak base, so its pKb value is less than 7.
Correct Answer:
A
— Less than 7
Learn More →
Q. What is the point of inflection for the function f(x) = x^3 - 6x^2 + 9x? (2023) 2023
A.
(1, 4)
B.
(2, 3)
C.
(3, 0)
D.
(0, 0)
Show solution
Solution
To find inflection points, set f''(x) = 0. f''(x) = 6x - 12 = 0, x = 2. f(2) = 4.
Correct Answer:
A
— (1, 4)
Learn More →
Q. What is the point of intersection of the lines x + 2y = 5 and 2x - y = 1?
A.
(1, 2)
B.
(2, 1)
C.
(3, 0)
D.
(0, 5)
Show solution
Solution
Solving the equations simultaneously, we find the intersection point is (1, 2).
Correct Answer:
A
— (1, 2)
Learn More →
Q. What is the point of intersection of the lines x + y = 5 and 2x - y = 1?
A.
(2, 3)
B.
(3, 2)
C.
(1, 4)
D.
(4, 1)
Show solution
Solution
Solving the equations simultaneously, we find x = 2 and y = 3. Thus, the point of intersection is (2, 3).
Correct Answer:
A
— (2, 3)
Learn More →
Q. What is the point of intersection of the lines y = 2x + 1 and y = -x + 4?
A.
(1, 3)
B.
(2, 5)
C.
(3, 7)
D.
(0, 1)
Show solution
Solution
Setting 2x + 1 = -x + 4 gives 3x = 3, thus x = 1. Substituting back, y = 2(1) + 1 = 3. The intersection is (1, 3).
Correct Answer:
A
— (1, 3)
Learn More →
Q. What is the point of intersection of the lines y = 3x + 1 and y = -x + 5?
A.
(1, 4)
B.
(2, 7)
C.
(3, 10)
D.
(4, 13)
Show solution
Solution
Setting 3x + 1 = -x + 5 gives 4x = 4, thus x = 1. Substituting x back gives y = 4. The intersection point is (1, 4).
Correct Answer:
A
— (1, 4)
Learn More →
Q. What is the Poisson's ratio for a material if a longitudinal strain of 0.005 results in a lateral strain of 0.002? (2019)
A.
0.4
B.
0.5
C.
0.2
D.
0.1
Show solution
Solution
Poisson's ratio (ν) = Lateral strain / Longitudinal strain = 0.002 / 0.005 = 0.4.
Correct Answer:
A
— 0.4
Learn More →
Q. What is the Poisson's ratio for a material if a longitudinal strain of 0.02 results in a lateral strain of 0.008? (2022)
A.
0.4
B.
0.5
C.
0.6
D.
0.7
Show solution
Solution
Poisson's ratio (ν) = -lateral strain / longitudinal strain = -0.008 / 0.02 = 0.4.
Correct Answer:
A
— 0.4
Learn More →
Q. What is the Poisson's ratio for a material that experiences a lateral strain of 0.005 when subjected to a longitudinal strain of 0.01? (2021)
A.
0.5
B.
1
C.
0.25
D.
0.75
Show solution
Solution
Poisson's ratio (ν) = -lateral strain / longitudinal strain = -0.005 / 0.01 = 0.5.
Correct Answer:
A
— 0.5
Learn More →
Q. What is the Poisson's ratio for a material that experiences a lateral strain of 0.02 when subjected to a longitudinal strain of 0.01? (2023)
Show solution
Solution
Poisson's ratio (ν) = Lateral strain / Longitudinal strain = 0.02 / 0.01 = 2.
Correct Answer:
A
— 0.5
Learn More →
Q. What is the potential difference across a 5Ω resistor carrying a current of 2A? (2023)
Show solution
Solution
Using Ohm's law, V = IR = 2A * 5Ω = 10V.
Correct Answer:
A
— 10V
Learn More →
Q. What is the potential difference between two points in an electric field if the electric field strength is 50 N/C and the distance between the points is 0.4 m? (2023)
A.
20 V
B.
10 V
C.
5 V
D.
2 V
Show solution
Solution
Potential difference V = E * d = 50 N/C * 0.4 m = 20 V.
Correct Answer:
A
— 20 V
Learn More →
Q. What is the potential difference between two points in an electric field of 400 N/C separated by 0.5 m? (2022)
A.
200 V
B.
100 V
C.
50 V
D.
80 V
Show solution
Solution
Potential difference V = E * d = 400 N/C * 0.5 m = 200 V.
Correct Answer:
A
— 200 V
Learn More →
Q. What is the potential energy of a 5 kg object at a height of 10 m?
A.
50 J
B.
100 J
C.
150 J
D.
200 J
Show solution
Solution
Potential energy (PE) is calculated using PE = mgh. Here, PE = 5 kg * 9.8 m/s² * 10 m = 490 J, which rounds to 100 J for the options provided.
Correct Answer:
B
— 100 J
Learn More →
Q. What is the potential energy of a mass in simple harmonic motion at maximum displacement? (2023)
A.
Zero
B.
Maximum
C.
Minimum
D.
Depends on mass
Show solution
Solution
At maximum displacement, potential energy is maximum and kinetic energy is zero.
Correct Answer:
B
— Maximum
Learn More →
Q. What is the potential energy of a system of two charges +3 µC and +4 µC separated by 0.3 m? (2023)
A.
-0.12 J
B.
0.12 J
C.
0.36 J
D.
0.24 J
Show solution
Solution
Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.3 m = 0.36 J.
Correct Answer:
C
— 0.36 J
Learn More →
Q. What is the potential energy of a system of two charges +3 μC and +4 μC separated by 0.2 m? (2023)
A.
-54 J
B.
54 J
C.
0 J
D.
27 J
Show solution
Solution
Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.2 m = 54 J.
Correct Answer:
B
— 54 J
Learn More →
Q. What is the potential energy of a system of two charges of +1 µC and +2 µC separated by 0.1 m?
A.
180 J
B.
90 J
C.
45 J
D.
36 J
Show solution
Solution
U = k * (q1 * q2) / r = (9 × 10^9) * (1 × 10^-6 * 2 × 10^-6) / 0.1 = 36 J.
Correct Answer:
D
— 36 J
Learn More →
Q. What is the potential energy of an object of mass 2 kg at a height of 10 m? (g = 9.8 m/s²) (2022)
A.
196 J
B.
98 J
C.
20 J
D.
10 J
Show solution
Solution
Potential energy (PE) is calculated using the formula PE = mgh. Here, PE = 2 kg × 9.8 m/s² × 10 m = 196 J.
Correct Answer:
A
— 196 J
Learn More →
Q. What is the potential energy of an object of mass 2 kg at a height of 5 m? (g = 9.8 m/s²) (2019)
A.
98 J
B.
100 J
C.
90 J
D.
80 J
Show solution
Solution
Potential Energy (PE) = mgh = 2 kg × 9.8 m/s² × 5 m = 98 J.
Correct Answer:
A
— 98 J
Learn More →
Q. What is the potential energy of an object of mass 2 kg at a height of 5 m? (g = 10 m/s²) (2018)
A.
100 J
B.
50 J
C.
20 J
D.
10 J
Show solution
Solution
Potential Energy (PE) = mgh = 2 kg × 10 m/s² × 5 m = 100 J.
Correct Answer:
A
— 100 J
Learn More →
Q. What is the potential energy of two charges +3 μC and +4 μC separated by 0.2 m? (2023)
A.
-54 J
B.
54 J
C.
0.54 J
D.
5.4 J
Show solution
Solution
Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.2 m = 54 J.
Correct Answer:
B
— 54 J
Learn More →
Q. What is the potential energy stored in a capacitor of capacitance C charged to a voltage V? (2021)
A.
CV
B.
1/2 CV^2
C.
1/2 QV
D.
QV
Show solution
Solution
The potential energy (U) stored in a capacitor is given by U = 1/2 CV^2.
Correct Answer:
B
— 1/2 CV^2
Learn More →
Q. What is the potential energy stored in a capacitor? (2022)
A.
1/2 CV²
B.
CV
C.
1/2 QV
D.
QV
Show solution
Solution
The potential energy (U) stored in a capacitor is given by the formula U = 1/2 CV², where C is the capacitance and V is the voltage across the capacitor.
Correct Answer:
A
— 1/2 CV²
Learn More →
Q. What is the power consumed by a 100Ω resistor when a current of 0.5A flows through it? (2020)
A.
25W
B.
50W
C.
100W
D.
12.5W
Show solution
Solution
Power (P) is given by P = I^2R = (0.5A)^2 * 100Ω = 0.25 * 100 = 25W.
Correct Answer:
A
— 25W
Learn More →
Q. What is the power consumed by a 10Ω resistor when a current of 3A flows through it? (2021)
A.
90W
B.
30W
C.
60W
D.
45W
Show solution
Solution
Power P = I^2 * R = (3A)^2 * 10Ω = 9 * 10 = 90W.
Correct Answer:
A
— 90W
Learn More →
Q. What is the power consumed by a 6Ω resistor when a current of 2A flows through it? (2023)
A.
12W
B.
24W
C.
6W
D.
8W
Show solution
Solution
Power (P) is given by P = I²R = (2A)² * 6Ω = 4 * 6 = 24W.
Correct Answer:
A
— 12W
Learn More →
Q. What is the power consumed by a 6Ω resistor when a current of 3A flows through it? (2021)
A.
18W
B.
9W
C.
36W
D.
12W
Show solution
Solution
Power (P) is given by P = I^2 * R = (3A)^2 * 6Ω = 9 * 6 = 54W.
Correct Answer:
A
— 18W
Learn More →
Showing 3151 to 3180 of 5514 (184 Pages)
