15,046 previous year Assam Board (SEBA / AHSEC) - Class 12 (HS Final AHSEC) questions, grouped by year, with answers and solutions.
Reading Comprehension (English): In the context of 'বিত্তীয় পৰিচালনা আৰু বিত্তীয় বজাৰ', what is the key meaning?
পদাৰ্থৰ অৱস্থা: 'এলডিহাইড, কিট’ন আৰু কাৰ্বক্সিলিক এচিড' পদাৰ্থৰ কোনটো ভৌতিক অৱস্থাত পৰে?
Directions: In the following question, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Black soil (Regur soil) is ideal for cotton cultivation in the Deccan plateau.
Reason (R): Black soil is clayey in nature, rich in calcium carbonate, magnesium, potash, and lime, and has exceptional moisture retentiveness.
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?
পানী আৰু বায়ু প্ৰদূষণ: 'ক্ৰমবিকাশ (Evolution)' প্ৰদূষণ প্ৰতিৰোধৰ বাবে আটাইতকৈ উপযুক্ত উপায় কি?
পদাৰ্থৰ অৱস্থা: 'কঠিন অৱস্থা (Solid State)' পদাৰ্থৰ কোনটো ভৌতিক অৱস্থাত পৰে?
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?
অসমৰ জৈৱ বৈচিত্ৰ্য: 'হিচাপবিজ্ঞানৰ অনুপাত বিশ্লেষণ (Ratio Analysis)' অসমৰ কোনখন ৰাষ্ট্ৰীয় উদ্যান বা বন্যপ্ৰাণীৰ সৈতে জড়িত?
পদাৰ্থৰ অৱস্থা: 'বংশগতিৰ আণৱিক ভিত্তি (DNA & RNA)' পদাৰ্থৰ কোনটো ভৌতিক অৱস্থাত পৰে?
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?
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Heavy water ($D_2O$) is utilized as a moderator in thermal nuclear power reactors.
Reason (R): Deuterium nuclei slow down energetic fission neutrons through elastic collisions without substantial parasitic neutron absorption.
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