Question

(C)
both (A) and (B)
(D
वायु में प्रकाश की चाल निर्वात की अपेक्षा होती है
A)
कम
(E
(C)
समान​

Answer 1

Answer:

a is the correct answer I think

Answer 2

Answer:

kam hoti hai

Explanation:

please MARK as the BRAINLIEST