जल संरक्षण व परंपरागत स्रोत: 'आनुवंशिकता एवं जैव विकास (मेंडल के नियम, लिंग निर्धारण)' उत्तराखंड के किस पारंपरिक जल स्रोत (धारा, नौला, चाल-खाल) से संबंधित है?
Uttarakhand Board (UBSE) - Class 10 (High School) previous year questions (PYQ)
7,519 previous year Uttarakhand Board (UBSE) - Class 10 (High School) questions, grouped by year, with answers and solutions.
2026 (1500 questions)
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2025 (532 questions)
Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?
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[MAT] If '+' means '$\times$', '-' means '$\div$', '$\times$' means '-', and '$\div$' means '+', what is the value of: $20 + 5 - 10 \div 4 \times 2$?
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2024 (1384 questions)
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2023 (428 questions)
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): An employer is vicariously liable for tortious civil wrongs committed by an employee during the authorized course of employment.
Reason (R): The doctrine of vicarious liability is founded on the legal maxims *respondeat superior* (let the master answer) and *qui facit per alium facit per se*.
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2022 (490 questions)
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): The electrical conductivity of an intrinsic semiconductor increases with rise in temperature.
Reason (R): With increase in temperature, covalent bonds rupture, generating additional free conduction electrons and mobile holes.
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): The Simon Commission was met with widespread nationwide boycotts and black flag protests upon landing in Bombay in 1928.
Reason (R): The British colonial government failed to appoint a single Indian representative to the seven-member Indian Statutory Commission.
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2021 (461 questions)
Directions: In the following question, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Self-Help Groups (SHGs) help rural women overcome the lack of collateral security.
Reason (R): Regular group savings and collective peer accountability enable SHGs to obtain collateral-free bank credit for self-employment activities.
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Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?
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2020 (447 questions)
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हिमालयी वनस्पति व औषधियां: 'रासायनिक अभिक्रियाएं एवं समीकरण (संतुलन, संयोजन, वियोजन, विस्थापन, रेडॉक्स)' से हमें कौन-सा प्रमुख उत्पाद या लाभ मिलता है?
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2019 (429 questions)
[SAT] Which gas is primarily responsible for the greenhouse effect and global warming?
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Danger signals on communication towers and traffic posts are always illuminated in red color.
Reason (R): Red light has the longest wavelength in the visible spectrum and suffers minimum Rayleigh scattering ($I \propto 1/\lambda^4$) through fog and smoke.
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2018 (466 questions)
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2017 (465 questions)
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Refer to the Case Study 'Case Study: Parabolic Cable Geometry in Civil Engineering Suspension Bridges' to answer:
What is the vertical height of the suspension cable at a horizontal distance of $25\text{ m}$ from the bridge center?
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2016 (479 questions)
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Terrace farming is widely practiced in hilly and mountainous agro-ecosystems.
Reason (R): Terraces create stepped flat platforms along slopes that significantly reduce the surface velocity of water runoff and prevent topsoil erosion.
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Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
What is the crucial legal distinction between the English rule of 'Strict Liability' and Indian 'Absolute Liability'?
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2015 (438 questions)
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): An employer is vicariously liable for tortious civil wrongs committed by an employee during the authorized course of employment.
Reason (R): The doctrine of vicarious liability is founded on the legal maxims *respondeat superior* (let the master answer) and *qui facit per alium facit per se*.
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): The value of $\sin\theta$ cannot exceed 1 for any real angle $\theta$.
Reason (R): In any right-angled triangle, the hypotenuse is the strictly longest side, ensuring the ratio $\text{Perpendicular}/\text{Hypotenuse} \le 1$.
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