1.

A thin equiconvex lens is made of glass of refractive index 1.5 and its focal length is 0.2 m, if it acts as a concave lens of 0.5 m focal length when dipped in a liquid, the refractive index of the liquid is                                            [EAMCET 2005]

A.            \[\frac{17}{8}\]                   
B.            \[\frac{15}{8}\]                                                                      
C.            \[\frac{13}{8}\]                   
D.            \[\frac{9}{8}\]
Answer» C.            \[\frac{13}{8}\]                   


Discussion

No Comment Found

Related MCQs