THE_BOUNDARY_BETWEEN_THE_FRESNEL_AND_FRAUNHOFER_ZONES_HAVING_A_LENGTH_OF_12_UNITS_AND_A_WAVELENGTH_OF_3_UNITS_IS?$

THE_BOUNDARY_BETWEEN_THE_FRESNEL_AND_FRAUNHOFER_ZONES_HAVING_A_LENGTH_

1.	THE_BOUNDARY_BETWEEN_THE_FRESNEL_AND_FRAUNHOFER_ZONES_HAVING_A_LENGTH_OF_12_UNITS_AND_A_WAVELENGTH_OF_3_UNITS_IS?$
A.	96
B.	48
C.	192
D.	36
Answer» B. 48