7,699 previous year Uttarakhand Board (UBSE) - Class 11 questions, grouped by year, with answers and solutions.
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Under the Constitution of India, the judiciary enjoys structural independence from executive and legislative interference.
Reason (R): Judges of the Supreme Court and High Courts have security of tenure and their judicial salaries are charged directly to the Consolidated Fund of India.
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Under the Constitution of India, the judiciary enjoys structural independence from executive and legislative interference.
Reason (R): Judges of the Supreme Court and High Courts have security of tenure and their judicial salaries are charged directly to the Consolidated Fund of India.
विलोम / पर्यायवाची: 'अपठित गद्यांश, पद्यांश एवं व्यावहारिक व्याकरण' का सही समानार्थी अथवा विलोम शब्द क्या है?
विलोम / पर्यायवाची: 'अपठित गद्यांश, पद्यांश एवं व्यावहारिक व्याकरण' का सही समानार्थी अथवा विलोम शब्द क्या है?
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*.
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.
Refer to the Case Study 'Case Study: The Chlor-Alkali Electrochemical Process in Chemical Industry' to answer:
Why is sodium hydroxide ($NaOH$) formed specifically in the cathode compartment?
स्थानीय मान व विस्तारित रूप: 'सरल रेखाएं, शंकु परिच्छेद (वृत्त, परवलय, दीर्घवृत्त, अतिपरवलय)' में रेखांकित अंक का स्थानीय मान क्या है?
Refer to the Case Study 'Case Study: Optical Fibers and Total Internal Reflection in Medical Endoscopy' to answer:
What essential conditions must be satisfied for total internal reflection to occur within the optical fiber?
Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
What measure of financial compensation did the Supreme Court establish in the M.C. Mehta Oleum Gas case?
आपदा प्रबंधन: 'वनस्पति जगत एवं प्राणि जगत का वर्गीकरण' पर्वतीय क्षेत्रों में भूस्खलन अथवा भूकंप से सुरक्षा का सर्वोत्तम उपाय क्या है?
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Energy flow through ecological food webs is strictly unidirectional.
Reason (R): Solar energy captured by autotrophic producers is dissipated as metabolic heat and cannot revert back to solar radiation, diminishing at successive trophic levels.
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Gastric enzyme pepsin requires an acidic environment to digest dietary proteins.
Reason (R): Hydrochloric acid secreted by parietal cells creates optimum pH (1.5 to 2.0) and cleaves inactive pepsinogen into active pepsin.
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 quadratic equation $x^2 - 6x + 9 = 0$ has real and equal roots.
Reason (R): A quadratic equation $ax^2 + bx + c = 0$ has real and equal roots if and only if its discriminant $D = b^2 - 4ac = 0$.
Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:
What measure of financial compensation did the Supreme Court establish in the M.C. Mehta Oleum Gas case?
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