Maxima and Minima Objective Questions
Maxima and Minima Objective Questions
Class: CBSE Class 12 Mathematics
Subject: Mathematics
Section: Applications of Derivatives
Topic: Maxima and Minima
Board: CBSE Board Examinations
Subject: Mathematics
Section: Applications of Derivatives
Topic: Maxima and Minima
Board: CBSE Board Examinations
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 12 Board Examination standard practice.
Q1. Local maxima occurs when f'(x)=0 and:
Answer: A
Explanation: Negative second derivative ⇒ concave down.
Explanation: Negative second derivative ⇒ concave down.
Q2. Local minima occurs when f'(x)=0 and:
Answer: B
Explanation: Concave up curve.
Explanation: Concave up curve.
Q3. Stationary point means:
Answer: A
Explanation: Zero slope tangent.
Explanation: Zero slope tangent.
Q4. Maximum value graph shape:
Answer: A
Explanation: Concave down.
Explanation: Concave down.
Q5. Minimum value graph shape:
Answer: B
Explanation: Concave up.
Explanation: Concave up.
Q6. First derivative sign change + to − gives:
Answer: A
Explanation: Peak point.
Explanation: Peak point.
Q7. − to + change gives:
Answer: B
Explanation: Valley point.
Explanation: Valley point.
Q8. Optimization problems find:
Answer: A
Explanation: Max/min solutions.
Explanation: Max/min solutions.
Q9. Critical points found by:
Answer: A
Explanation: First derivative zero.
Explanation: First derivative zero.
Q10. Absolute maxima means:
Answer: A
Explanation: Greatest value in domain.
Explanation: Greatest value in domain.
Q11. Absolute minima means:
Answer: A
Explanation: Smallest domain value.
Explanation: Smallest domain value.
Q12. Second derivative test determines:
Answer: A
Explanation: Max or min nature.
Explanation: Max or min nature.
Q13. If f''(x)=0 and sign changes:
Answer: A
Explanation: Concavity change.
Explanation: Concavity change.
Q14. Tangent horizontal at extrema because:
Answer: A
Explanation: Zero slope.
Explanation: Zero slope.
Q15. Optimization uses:
Answer: A
Explanation: Core derivative application.
Explanation: Core derivative application.
Q16. Max/min problems relate to:
Answer: A
Explanation: Practical applications.
Explanation: Practical applications.
Q17. Turning point another name:
Answer: A
Explanation: Maxima or minima.
Explanation: Maxima or minima.
Q18. Concave down implies:
Answer: A
Explanation: Downward curve peak.
Explanation: Downward curve peak.
Q19. Concave up implies:
Answer: A
Explanation: Upward curve valley.
Explanation: Upward curve valley.
Q20. Extrema found using:
Answer: A
Explanation: Critical point method.
Explanation: Critical point method.