Class 7 Science MCQs – Certification Test 2132

Refraction of Light Quiz (Question 2132) – Learning App & e-Book Download

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MCQ 2132: When light enters water from air, its speed decreases to:

20,000 km/s
25,000 km/s
200,000 km/s
250,000 km/s

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Refraction of Light Quiz App & e-Book – Class 7 Science Exam Prep

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