for second question 4.5×10^8 is right or wrong answer
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Answer:
It is wrong
Explanation:
The answer is 2×10^8
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4.5 × 10^8 is the wrong answer.
Correct answer:
nx / ny = cy / cx
2/3 = cy / (3 × 10^8)
cy = 2 × 10^8 m/s
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