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50 Most Repeated Physics MCQs: Class 12 CBSE

  50 Most Repeated Physics MCQs: Class 12 CBSE Solved & Optimized for Board Exams 2026 प्रबंधक की सूचना (Manager's Note): All questions follow the latest CBSE MCQ pattern. Click the "Solution" dropdown to check your accuracy. Unit 1: Electrostatics & Current Electricity Q1. A dipole is placed in a uniform electric field. It experiences: (a) Force only (b) Torque only (c) Both force and torque (d) Neither force nor torque उत्तर (Solution) Ans: (b) Torque only. In a uniform field, net force is zero ($qE - qE$), but since the forces act at different points, they produce torque. Q2. If the distance between two charges is doubled, the electrostatic force becomes: (a) 1/2 times (b) 2 times (c) 1/4 times (d) 4 times उत्तर (Solution) Ans: (c) 1/4 times. $F \propto 1/r^2$. So, doubling $r$ makes $F$ one-fourth. Q3. Which of th...
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CBSE Class 12 Science: 3-Year Weightage & Trend Analysis (2024-2026)

  CBSE Class 12 Science: 3-Year Weightage & Trend Analysis (2024-2026) A Detailed Comparison of Physics, Chemistry, Biology & Maths Marking Schemes सामग्री की तालिका (Table of Contents): 1. प्रमुख रुझान और परिवर्तन (Key Trends & Changes) 2. भौतिकी: 3-वर्षीय तुलना (Physics Comparison) 3. रसायन विज्ञान डेटा (Chemistry Data) 4. परीक्षा पैटर्न में बदलाव (Exam Pattern Shift) 1. The Strategic Shift: 2024 vs 2026 Over the last three years, CBSE has moved away from rote memorization. In 2024 , direct questions and derivations dominated. By 2026 , "Competency-Based Questions" (Case Studies and MCQs) have increased to 50% of the total weightage. This means students must now focus on application rather than just definitions. 2. Physics (Theory - 70 Marks): 3-Year Mark Distribution Unit Name ...
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Class 10 Mathematics – Assertion & Reason Online mock Test

  Class 10 Maths Assertion Reason Quiz | 50 Questions | StudyBeacon Class 10 Mathematics – Assertion & Reason Online Quiz (50 Questions) Options: A. Both A and R are true and R is the correct explanation B. Both A and R are true but R is not the correct explanation C. A is true but R is false D. A is false but R is true Q1. Assertion: HCF of two numbers divides their sum. Reason: HCF divides any linear combination of the numbers. A B C D Answer: A Show Answer Q2. Assertion: A polynomial of degree n has at most n zeroes. Reason: Graph of polynomial can intersect x-axis at most n times. A B C D Answer: A Show Answer Q3. Assertion: If two lines intersect, system has unique solution. Reason: Lines intersect at exactly one point. A B C D Answer: A Show Answer Q4. Assertion: Discriminant determines nature of roots. Reason: Discriminant is b²−4ac. A B C D Answer: B Show Answer Q5. Assertion: Common difference o...
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Class 10 Science – Assertion & Reason Questions CBSE PYQ based

  Class 10 Science Assertion Reason Quiz | 50 Questions | StudyBeacon Class 10 Science – Assertion & Reason Online Quiz (50 Questions) Instructions: Select the correct option and click Show Answer to reveal explanation. Options: A. Both A and R are true and R is the correct explanation B. Both A and R are true but R is not the correct explanation C. A is true but R is false D. A is false but R is true Q1. Assertion: Mitochondria are called powerhouse of the cell. Reason: They synthesize ATP during respiration. A B C D Answer: A Explanation: ATP is the energy currency produced by mitochondria. Show Answer Q2. Assertion: Anaerobic respiration produces less energy. Reason: Glucose is incompletely oxidized. A B C D Answer: A Explanation: Partial breakdown of glucose releases less energy. Show Answer Q3. Assertion: Alveoli increase efficiency of respiration. Reason: They provide large surface area. A B C D Answer: A...
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