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. What is the relationship between Celsius and Kelvin?
A.
K = C + 273.15
B.
K = C - 273.15
C.
C = K + 273.15
D.
C = K - 273.15
Show solution
Solution
The relationship is K = C + 273.15, where K is the temperature in Kelvin and C is the temperature in Celsius.
Correct Answer:
A
— K = C + 273.15
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Q. What is the relationship between charge (Q), capacitance (C), and voltage (V) in a capacitor? (2023)
A.
Q = CV
B.
Q = C/V
C.
Q = V/C
D.
Q = C + V
Show solution
Solution
The relationship is given by Q = CV, where Q is the charge, C is the capacitance, and V is the voltage across the capacitor.
Correct Answer:
A
— Q = CV
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Q. What is the relationship between climate change and economic growth as discussed in the passage?
A.
Economic growth is unaffected by climate change.
B.
Climate change hinders economic growth in the long term.
C.
Economic growth accelerates climate change.
D.
There is no relationship between the two.
Show solution
Solution
The passage discusses how climate change can hinder economic growth in the long term, emphasizing the need for sustainable practices.
Correct Answer:
B
— Climate change hinders economic growth in the long term.
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Q. What is the relationship between climate change and economic growth as presented in the passage? (2023)
A.
They are mutually exclusive.
B.
Economic growth exacerbates climate change.
C.
Climate change hinders economic growth.
D.
They are unrelated issues.
Show solution
Solution
The passage indicates that climate change poses significant risks to economic growth, suggesting a direct relationship where one affects the other.
Correct Answer:
C
— Climate change hinders economic growth.
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Q. What is the relationship between corresponding angles when two parallel lines are cut by a transversal?
A.
They are equal
B.
They are supplementary
C.
They are complementary
D.
They are unequal
Show solution
Solution
Corresponding angles are equal when two parallel lines are cut by a transversal.
Correct Answer:
A
— They are equal
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Q. What is the relationship between current (I), charge (Q), and time (t)? (2022)
A.
I = Q × t
B.
I = Q / t
C.
I = t / Q
D.
I = Q + t
Show solution
Solution
The relationship is given by I = Q / t, where I is current, Q is charge, and t is time.
Correct Answer:
B
— I = Q / t
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Q. What is the relationship between current (I), voltage (V), and resistance (R) in a circuit? (2021)
A.
I = V/R
B.
I = R/V
C.
I = V*R
D.
I = V + R
Show solution
Solution
The relationship is given by Ohm's law: I = V/R.
Correct Answer:
A
— I = V/R
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Q. What is the relationship between current and magnetic field in a long straight conductor?
A.
Directly proportional
B.
Inversely proportional
C.
Independent
D.
Exponential
Show solution
Solution
The magnetic field around a long straight conductor is directly proportional to the current flowing through it.
Correct Answer:
A
— Directly proportional
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Q. What is the relationship between current, voltage, and resistance called? (2021)
A.
Ohm's Law
B.
Kirchhoff's Law
C.
Faraday's Law
D.
Ampere's Law
Show solution
Solution
The relationship between current, voltage, and resistance is called Ohm's Law.
Correct Answer:
A
— Ohm's Law
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Q. What is the relationship between current, voltage, and resistance in an electrical circuit?
A.
Ohm's Law
B.
Kirchhoff's Law
C.
Faraday's Law
D.
Ampere's Law
Show solution
Solution
Ohm's Law defines the relationship between current (I), voltage (V), and resistance (R) as V = IR.
Correct Answer:
A
— Ohm's Law
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Q. What is the relationship between digital sum and data integrity as mentioned in the passage? (2023)
A.
Digital sum enhances data integrity.
B.
Digital sum has no impact on data integrity.
C.
Digital sum complicates data integrity.
D.
Digital sum is irrelevant to data integrity.
Show solution
Solution
The passage states that digital sum plays a crucial role in enhancing data integrity, ensuring accurate data processing.
Correct Answer:
A
— Digital sum enhances data integrity.
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Q. What is the relationship between digital sum and data processing as described in the passage? (2023)
A.
Digital sum is a minor aspect of data processing.
B.
Digital sum enhances the efficiency of data processing.
C.
Digital sum complicates data processing.
D.
Digital sum is irrelevant to data processing.
Show solution
Solution
The passage indicates that digital sum enhances the efficiency of data processing, making it a significant aspect.
Correct Answer:
B
— Digital sum enhances the efficiency of data processing.
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Q. What is the relationship between digital sum and error detection as mentioned in the passage? (2023)
A.
Digital sum is irrelevant to error detection.
B.
Digital sum can enhance error detection methods.
C.
Error detection methods are based solely on digital sum.
D.
Digital sum complicates error detection processes.
Show solution
Solution
The passage indicates that digital sum plays a significant role in improving error detection techniques.
Correct Answer:
B
— Digital sum can enhance error detection methods.
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Q. What is the relationship between digital sum and traditional calculation methods as described in the passage?
A.
Digital sum is a direct replacement for traditional methods.
B.
Digital sum complements traditional methods.
C.
Digital sum is less efficient than traditional methods.
D.
Digital sum is unrelated to traditional methods.
Show solution
Solution
The passage indicates that digital sum complements traditional methods by providing additional efficiency.
Correct Answer:
B
— Digital sum complements traditional methods.
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Q. What is the relationship between electric field (E) and electric potential (V) in a uniform field? (2022)
A.
E = V/d
B.
E = d/V
C.
E = V^2
D.
E = V/d^2
Show solution
Solution
In a uniform electric field, the electric field E is related to the potential difference V and the distance d by the equation E = V/d.
Correct Answer:
A
— E = V/d
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Q. What is the relationship between electric field and electric potential?
A.
E = -dV/dr
B.
E = dV/dr
C.
E = V/r
D.
E = V^2
Show solution
Solution
The electric field E is the negative gradient of the electric potential V, given by E = -dV/dr.
Correct Answer:
A
— E = -dV/dr
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Q. What is the relationship between electric field E and electric potential V?
A.
E = -dV/dx
B.
E = dV/dx
C.
E = V/d
D.
E = -V/d
Show solution
Solution
The electric field E is the negative gradient of the electric potential V, given by E = -dV/dx.
Correct Answer:
A
— E = -dV/dx
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Q. What is the relationship between electric field E and potential V in a uniform electric field?
A.
E = -dV/dx
B.
E = dV/dx
C.
E = V/dx
D.
E = -V/dx
Show solution
Solution
In a uniform electric field, the relationship is given by E = -dV/dx, indicating that the electric field points in the direction of decreasing potential.
Correct Answer:
A
— E = -dV/dx
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Q. What is the relationship between electric field E and potential V in electrostatics?
A.
E = -dV/dx
B.
E = dV/dx
C.
E = V/dx
D.
E = -V
Show solution
Solution
The electric field is the negative gradient of the electric potential, E = -dV/dx.
Correct Answer:
A
— E = -dV/dx
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Q. What is the relationship between electric field E and surface charge density σ on a conductor?
A.
E = σ/ε₀
B.
E = σ/2ε₀
C.
E = 2σ/ε₀
D.
E = σ/4ε₀
Show solution
Solution
The electric field just outside a charged conductor is given by E = σ/ε₀.
Correct Answer:
A
— E = σ/ε₀
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Q. What is the relationship between electric potential (V) and electric field (E) in a uniform field?
A.
V = E × d
B.
V = E/d
C.
E = V × d
D.
E = V/d
Show solution
Solution
In a uniform electric field, the electric potential difference V is given by V = E × d, where d is the distance moved in the direction of the field.
Correct Answer:
A
— V = E × d
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Q. What is the relationship between electric potential and electric field?
A.
E = -dV/dx
B.
E = dV/dx
C.
E = V/d
D.
E = -V/d
Show solution
Solution
The electric field E is the negative gradient of the electric potential V, expressed as E = -dV/dx.
Correct Answer:
A
— E = -dV/dx
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Q. What is the relationship between enthalpy (H), internal energy (U), and pressure-volume work (PV)?
A.
H = U + PV
B.
H = U - PV
C.
H = U * PV
D.
H = U / PV
Show solution
Solution
The relationship is given by H = U + PV, where H is enthalpy, U is internal energy, and PV is the pressure-volume work.
Correct Answer:
A
— H = U + PV
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Q. What is the relationship between enthalpy (H), internal energy (U), pressure (P), and volume (V)?
A.
H = U + PV
B.
H = U - PV
C.
H = U + P/V
D.
H = U - P/V
Show solution
Solution
The relationship is given by H = U + PV, where H is enthalpy, U is internal energy, P is pressure, and V is volume.
Correct Answer:
A
— H = U + PV
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Q. What is the relationship between enthalpy and internal energy?
A.
H = U + PV
B.
H = U - PV
C.
H = U * PV
D.
H = U / PV
Show solution
Solution
The relationship is given by the equation H = U + PV, where H is enthalpy, U is internal energy, P is pressure, and V is volume.
Correct Answer:
A
— H = U + PV
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Q. What is the relationship between enthalpy change and internal energy change at constant pressure?
A.
ΔH = ΔU + PΔV
B.
ΔH = ΔU - PΔV
C.
ΔH = ΔU
D.
ΔH = PΔV
Show solution
Solution
At constant pressure, the relationship is given by ΔH = ΔU + PΔV.
Correct Answer:
A
— ΔH = ΔU + PΔV
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Q. What is the relationship between entropy and spontaneity of a process?
A.
Higher entropy means the process is non-spontaneous.
B.
Lower entropy means the process is spontaneous.
C.
Higher entropy generally indicates a spontaneous process.
D.
Entropy has no relation to spontaneity.
Show solution
Solution
A higher entropy generally indicates a spontaneous process, as spontaneous processes tend to increase the overall disorder of the system.
Correct Answer:
C
— Higher entropy generally indicates a spontaneous process.
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Q. What is the relationship between entropy and temperature?
A.
Entropy increases with decreasing temperature
B.
Entropy decreases with increasing temperature
C.
Entropy increases with increasing temperature
D.
Entropy is independent of temperature
Show solution
Solution
Entropy generally increases with increasing temperature due to increased molecular motion and disorder.
Correct Answer:
C
— Entropy increases with increasing temperature
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Q. What is the relationship between frequency (f) and period (T) of a wave? (2023)
A.
f = T
B.
f = 1/T
C.
f = T^2
D.
f = 2πT
Show solution
Solution
The frequency (f) is the reciprocal of the period (T), given by the formula f = 1/T.
Correct Answer:
B
— f = 1/T
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Q. What is the relationship between frequency and period of a wave? (2020)
A.
Frequency = Period × Speed
B.
Frequency = 1/Period
C.
Frequency = Speed × Wavelength
D.
Frequency = Wavelength/Speed
Show solution
Solution
The frequency (f) of a wave is the reciprocal of the period (T), given by the formula f = 1/T.
Correct Answer:
B
— Frequency = 1/Period
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