Light of the wave length \[7200{{A}^{o}}\] in air has a wave length in – McqOptions

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1.	Light of the wave length \[7200{{A}^{o}}\] in air has a wave length in glass is equal to (\[\mu =1.5\])
A.	\[7200\overset{\text{o}}{\mathop{\text{A}}}\,\]
B.	\[4800\overset{\text{o}}{\mathop{\text{A}}}\,\]
C.	\[1080\overset{\text{o}}{\mathop{\text{A}}}\,\]
D.	\[3600\overset{\text{o}}{\mathop{\text{A}}}\,\]
Answer» C. \[1080\overset{\text{o}}{\mathop{\text{A}}}\,\]

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