Q1. [1] § 5.5 Summary
The common difference of the AP : $\sqrt{2}, 2\sqrt{2}, 3\sqrt{2}, 4\sqrt{2}, .....$ is :
- (a) $\sqrt{2}$
- (b) 1
- (c) $2\sqrt{2}$
- (d) $-\sqrt{2}$
Previously asked in CBSE board exam
2026 30/1/1 Q6
Generated by claude-sonnet-4-6 · 2026-06-15 10:32 · grounding rag
Model Answer
(a) $\sqrt{2}$
Common difference $d = 2\sqrt{2} - \sqrt{2} = \sqrt{2}$.
Explanation
The common difference is found by subtracting any term from the next term. Here, each term increases by $\sqrt{2}$, so $d = \sqrt{2}$. Option (a) is correct.
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