Arrange the visible spectrum colours in the order typically seen in a rainbow (from top/outer band to bottom/inner band). 1. Orange 2. Indigo 3. Red 4. Blue 5. Green 6. Yellow 7. Violet
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A7, 2, 4, 5, 6, 1, 3
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B7, 2, 4, 6, 5, 1, 3
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C7, 2, 6, 4, 5, 1, 3
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D7, 2, 6, 4, 1, 5, 3
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E2, 4, 6, 1, 5, 7, 3
Answer
Correct Answer: 7, 2, 4, 5, 6, 1, 3
Explanation
Introduction / Context:The classic VIBGYOR colour order in a primary rainbow is a standard memory sequence in general science questions.
Given Data / Assumptions:
- Mapping: V=Violet(7), I=Indigo(2), B=Blue(4), G=Green(5), Y=Yellow(6), O=Orange(1), R=Red(3).
- We follow the usual top (outer) to bottom (inner) sequence as commonly taught.
Concept / Approach:Recall the mnemonic VIBGYOR and map to the provided indices.
Step-by-Step Solution:Start with Violet → 7.Then Indigo → 2.Then Blue → 4.Then Green → 5.Then Yellow → 6.Then Orange → 1.Finally Red → 3.
Verification / Alternative check:Matches the standard school-level order V-I-B-G-Y-O-R.
Why Other Options Are Wrong:Any reordering that swaps adjacent bands or misplaces red/violet contradicts the canonical mnemonic.
Common Pitfalls:Confusing inner vs outer band orientation; mixing yellow and orange positions.
Final Answer:7, 2, 4, 5, 6, 1, 3