Two refracting media are separated by a spherical interfaces as shown in the figure. AB is the principal axis, `mu_1 and mu_2` are the refractive indices of medium of incidence and medium of refraction respectively. Then,
A. if`mu_(2)gtmu_(1)`.then there cannot be a real Image of real object.
B. if`mu_(2)gtmu_(1)`.then there cannot be a real Image of virtual object.
C. if`mu_(1)gtmu_(2)`.then there cannot be a virtaul Image of virtual object.
D. if`mu_(1)gtmu_(2)`.then there cannot be a real Image of real object.