Check sibling questions
Class 10
Solutions to CBSE Sample Paper - Science Class 10

Assertion: Sky appears blue in the day time. 

Reason: White light is composed of seven colours


Answer - 

  • It is true that Sky appears blue during day time.
  • Also, white light is composed of seven colors - VIBGYOR
  • But, Sky appears blue because Earth’s atmosphere scatters blue light.



  • Assertion is true
  • Reasoning is true
  • And reasoning is not the correct explanation of assertion 


So, the correct answer is (b)  

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo