Difficulty: Easy
Correct Answer: Both A and R are true and R is the correct explanation of A.
Explanation:
Introduction / Context:
This Assertion–Reason question comes from basic history of science and technology. It deals with James Watt and the development of the steam engine, as well as the practical industrial problem of pumping water out of flooded mines. Many school-level narratives credit Watt with the steam engine and link it to the needs of the Industrial Revolution.
Given Data / Assumptions:
Concept / Approach:
Historically, several inventors contributed to steam engine development, but in many educational curricula James Watt is credited with inventing or significantly improving the steam engine used in industry. The Reason talks about the practical problem of pumping water, which was indeed a driving factor for early steam engine designs. Our task is to judge whether this practical problem is an appropriate explanation for the development of Watt-type steam engines.
Step-by-Step Solution:
Verification / Alternative check:
History references often mention that early steam engines like those improved by Watt were first installed in coal mines to pump water. Only later were they adapted to drive factory machinery and locomotives. This consistently supports the link between flooded mines and the development of steam engines.
Why Other Options Are Wrong:
Claiming that both A and R are true but R is not the explanation ignores the strong historical connection between mine drainage problems and steam engine development.
Saying A is true but R is false contradicts well known industrial history, where mine pumping is a classic example of early steam engine use.
Stating A is false but R is true would also conflict with the standard exam-level understanding that credits Watt with the steam engine.
Common Pitfalls:
Some learners may recall that Newcomen and others worked on steam engines before Watt and therefore feel unsure about A. However, Assertion–Reason questions at this level usually follow textbook convention rather than detailed scholarly debate. Focus on what your level of exam expects rather than deep historiographical nuance.
Final Answer:
The correct option is Both A and R are true and R is the correct explanation of A.
Discussion & Comments