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Solution


Q.

Assertion: The sequence of rainbow colour is represented as VIBGYOR.
Reason: Formation of VIBGYOR sequence colour is due to the dispersion of white light.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.  
3 Assertion is true, but reason is false.  
4 Assertion is false, but reason is true.  

Ans.

(1)

We know that the rainbow has seven constituent colours such as Violet, Indigo, Blue, Green, Yellow, Orange and Red. These colours are represented as VIBGYOR. It occurs due to the dispersion of white light, i.e., when the white light passes through a glass prism, this phenomenon of splitting white light into VIBGYOR occurs. Thus, both assertion and reason are correct and reason is the correct explanation of assertion.