7. दो माध्यमों के सीमा पृष्ठ पर एक प्रकाश की किरण लम्बवत् आपतित
होती है तो अपवर्तन कोण होगा-
[2019]
(a)
(c)
21. यदि
AFO
००
(a) 600
d) 900
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Answer:
Plz thanx me and make me brainlist then I will follow u and take free points Ok and plz follow me plz and take free points Ok and plz follow me plz and take free points Ok
Explanation:
pl
Answered by
0
Answer:
Follow me my brainlist id
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