Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. A 1000 W heater operates for 3 hours. How much energy does it consume?
A.
3000 J
B.
1080000 J
C.
3600000 J
D.
1000 J
Show solution
Solution
Energy consumed is E = P * t. Here, P = 1000 W and t = 3 hours = 10800 seconds. Thus, E = 1000 W * 10800 s = 10800000 J.
Correct Answer:
C
— 3600000 J
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Q. A 100W bulb operates at 220V. What is the resistance of the bulb? (2021)
A.
484Ω
B.
220Ω
C.
110Ω
D.
100Ω
Show solution
Solution
Using P = V^2/R, we rearrange to find R = V^2/P = (220V)^2 / 100W = 484Ω.
Correct Answer:
A
— 484Ω
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Q. A 12 kg box is pulled with a force of 60 N at an angle of 30 degrees to the horizontal. What is the horizontal component of the force?
A.
30 N
B.
60 N
C.
51.96 N
D.
20 N
Show solution
Solution
The horizontal component is F_horizontal = F * cos(θ) = 60 N * cos(30°) = 60 N * (√3/2) = 51.96 N.
Correct Answer:
C
— 51.96 N
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Q. A 12 kg object is at rest on a horizontal surface. What is the normal force acting on it?
A.
0 N
B.
12 N
C.
120 N
D.
100 N
Show solution
Solution
The normal force equals the weight of the object: N = mg = 12 kg * 10 m/s² = 120 N.
Correct Answer:
C
— 120 N
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Q. A 12 kg object is at rest. A force of 36 N is applied to it. What is the acceleration of the object? (2021)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Using F = ma, a = F/m = 36 N / 12 kg = 3 m/s².
Correct Answer:
C
— 3 m/s²
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Q. A 12 kg object is at rest. A force of 36 N is applied to it. What will be its velocity after 3 seconds? (2020)
A.
1 m/s
B.
2 m/s
C.
3 m/s
D.
4 m/s
Show solution
Solution
Acceleration = Force / Mass = 36 N / 12 kg = 3 m/s². Velocity = Initial velocity + (Acceleration × Time) = 0 + (3 m/s² × 3 s) = 9 m/s.
Correct Answer:
C
— 3 m/s
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Q. A 12 kg object is in free fall. What is the force acting on it due to gravity?
A.
12 N
B.
24 N
C.
36 N
D.
48 N
Show solution
Solution
The force due to gravity is F = mg = 12 kg * 9.8 m/s² = 117.6 N (approximately 120 N).
Correct Answer:
B
— 24 N
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Q. A 12 kg object is moving with a velocity of 3 m/s. What is its momentum? (2019)
A.
36 kg·m/s
B.
12 kg·m/s
C.
9 kg·m/s
D.
24 kg·m/s
Show solution
Solution
Momentum p = mv = 12 kg * 3 m/s = 36 kg·m/s.
Correct Answer:
A
— 36 kg·m/s
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Q. A 12 kg object is moving with a velocity of 5 m/s. What is its kinetic energy?
A.
150 J
B.
120 J
C.
100 J
D.
75 J
Show solution
Solution
Kinetic energy KE = 0.5 * m * v² = 0.5 * 12 kg * (5 m/s)² = 150 J.
Correct Answer:
B
— 120 J
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Q. A 12 kg object is moving with a velocity of 5 m/s. What is its momentum?
A.
30 kg·m/s
B.
60 kg·m/s
C.
90 kg·m/s
D.
120 kg·m/s
Show solution
Solution
Momentum p = mv = 12 kg * 5 m/s = 60 kg·m/s.
Correct Answer:
B
— 60 kg·m/s
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Q. A 12 kg object is pulled with a force of 24 N. If the object experiences a frictional force of 4 N, what is its acceleration?
A.
1.67 m/s²
B.
2 m/s²
C.
2.5 m/s²
D.
3 m/s²
Show solution
Solution
Net force = 24 N - 4 N = 20 N. Acceleration a = F/m = 20 N / 12 kg = 1.67 m/s².
Correct Answer:
B
— 2 m/s²
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Q. A 12 kg object is pulled with a force of 48 N. If the frictional force is 12 N, what is the acceleration of the object? (2023)
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Net force = 48 N - 12 N = 36 N. Acceleration a = F/m = 36 N / 12 kg = 3 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 12 kg object is pushed with a force of 36 N. What is its acceleration? (2023)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Using F = ma, we find a = F/m = 36 N / 12 kg = 3 m/s².
Correct Answer:
C
— 3 m/s²
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Q. A 12 V battery is connected to a circuit with a resistance of 4Ω. What is the current flowing through the circuit?
A.
2 A
B.
3 A
C.
4 A
D.
5 A
Show solution
Solution
Using Ohm's Law, I = V/R = 12 V / 4Ω = 3 A.
Correct Answer:
B
— 3 A
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Q. A 12 V battery is connected to a resistor of 3 ohms. What is the current flowing through the circuit?
A.
2 A
B.
3 A
C.
4 A
D.
5 A
Show solution
Solution
Using Ohm's Law, I = V/R = 12 V / 3 ohms = 4 A.
Correct Answer:
A
— 2 A
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Q. A 12 V battery is connected to a resistor of 4 ohms. What is the current flowing through the circuit?
A.
2 A
B.
3 A
C.
4 A
D.
5 A
Show solution
Solution
Using Ohm's Law, I = V/R = 12 V / 4 ohms = 3 A.
Correct Answer:
A
— 2 A
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Q. A 12-meter tall pole casts a shadow of 6 meters. What is the angle of elevation of the sun?
A.
30 degrees
B.
45 degrees
C.
60 degrees
D.
90 degrees
Show solution
Solution
Using tan(θ) = height / shadow length, we have θ = tan⁻¹(12/6) = tan⁻¹(2) which corresponds to approximately 60 degrees.
Correct Answer:
C
— 60 degrees
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Q. A 12V battery is connected across a 4Ω resistor. What is the current flowing through the resistor? (2020)
Show solution
Solution
Using Ohm's law, I = V/R = 12V / 4Ω = 3A.
Correct Answer:
A
— 2A
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Q. A 12V battery is connected to a resistor of 4Ω. What is the current flowing through the circuit? (2022)
Show solution
Solution
Using Ohm's law, I = V/R = 12V / 4Ω = 3A.
Correct Answer:
A
— 2A
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Q. A 15 kg box is pulled with a force of 60 N at an angle of 30° to the horizontal. What is the horizontal component of the force? (2022)
A.
30 N
B.
60 N
C.
51.96 N
D.
15 N
Show solution
Solution
Horizontal component = F * cos(θ) = 60 N * cos(30°) = 60 N * (√3/2) = 51.96 N.
Correct Answer:
C
— 51.96 N
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Q. A 15 kg box is pushed with a force of 30 N. If the frictional force opposing the motion is 10 N, what is the acceleration of the box?
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Net force = applied force - friction = 30 N - 10 N = 20 N. Acceleration a = F/m = 20 N / 15 kg = 1.33 m/s².
Correct Answer:
B
— 2 m/s²
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Q. A 15 kg box is pushed with a force of 45 N. What is the acceleration of the box? (Assume no friction)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Using F = ma, we have a = F/m = 45 N / 15 kg = 3 m/s².
Correct Answer:
C
— 3 m/s²
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Q. A 15 kg box is pushed with a force of 60 N on a rough surface with a frictional force of 15 N. What is the box's acceleration?
A.
3 m/s²
B.
4 m/s²
C.
5 m/s²
D.
6 m/s²
Show solution
Solution
Net force = 60 N - 15 N = 45 N. Acceleration a = F/m = 45 N / 15 kg = 3 m/s².
Correct Answer:
B
— 4 m/s²
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Q. A 15 kg box is pushed with a force of 60 N. If the frictional force is 15 N, what is the acceleration of the box? (2023)
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Net force = 60 N - 15 N = 45 N. Acceleration a = F/m = 45 N / 15 kg = 3 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 15 kg box is pushed with a force of 60 N. If the frictional force is 20 N, what is the acceleration of the box?
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Net force = applied force - friction = 60 N - 20 N = 40 N. Acceleration a = F/m = 40 N / 15 kg = 2.67 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 15 kg cart is pushed with a force of 60 N. If the frictional force opposing the motion is 15 N, what is the acceleration of the cart?
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show solution
Solution
Net force = 60 N - 15 N = 45 N. Using F = ma, a = F/m = 45 N / 15 kg = 3 m/s².
Correct Answer:
B
— 3 m/s²
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Q. A 15 kg object is at rest on a horizontal surface. What is the normal force acting on it?
A.
0 N
B.
15 N
C.
150 N
D.
75 N
Show solution
Solution
Normal force = weight = mg = 15 kg * 10 m/s² = 150 N.
Correct Answer:
C
— 150 N
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Q. A 15 kg object is at rest on a table. What is the force exerted by the table on the object?
A.
0 N
B.
15 N
C.
150 N
D.
10 N
Show solution
Solution
The normal force equals the weight of the object: 15 kg * 10 m/s² = 150 N.
Correct Answer:
C
— 150 N
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Q. A 15 kg object is dropped from a height. What is the force acting on it due to gravity? (2023)
A.
15 N
B.
30 N
C.
45 N
D.
150 N
Show solution
Solution
Using F = mg, where g = 9.8 m/s², we have F = 15 kg * 9.8 m/s² = 147 N, which rounds to 150 N.
Correct Answer:
B
— 30 N
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Q. A 15 kg object is in equilibrium. What is the net force acting on it?
A.
0 N
B.
15 N
C.
30 N
D.
45 N
Show solution
Solution
In equilibrium, the net force acting on the object is 0 N.
Correct Answer:
A
— 0 N
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