In a 50 cm TV tube, a path difference of 2 km between direct wave and – McqOptions

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1.	In a 50 cm TV tube, a path difference of 2 km between direct wave and interfering wave would mean a displacement between main image and ghost image equal to
A.	0.3 cm
B.	3 cm
C.	6 cm
D.	9 cm
Answer» B. 3 cm

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