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IUT_11-12
HSC - পদার্থ বিজ্ঞান ২য় পত্র
→
অধ্যায়-০৭ঃ ভৌত আলোকবিজ্ঞান
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All Topics
How much phase difference is created when an electromagnetic wave of frequency
1000
M
H
z
1000\ MHz
1000
M
Hz
travels a distance of
10
c
m
10cm
10
c
m
?
A.
12
5
∘
125^{\circ }
12
5
∘
B.
12
0
∘
120^{\circ }
12
0
∘
C.
13
0
∘
130^{\circ }
13
0
∘
D.
10
0
∘
100^\circ
10
0
∘
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