| List - I | List – II | ||
| A. | Parturition | i. | Several antibodies for new-born babies |
| B. | Placenta | ii. | Collection of ovum after ovulation |
| C. | Colostrum | iii. | Foetal ejection reflex |
| D. | Fimbriae | iv. | Secretion of the hormone hCG |
A. Parturition: Parturition refers to childbirth, which is initiated by the foetal ejection reflex. A-III
B. Placenta: The placenta is an organ that develops during pregnancy and is responsible for secreting the hormone human chorionic gonadotropin (hCG). B-IV
C. Colostrum: Colostrum, the first milk produced by mammals after giving birth, is rich in antibodies that provide passive immunity to newborns. C-I
D. Fimbriae: Finger-like projections at the end of the fallopian tubes that help collect the ovum (egg) after ovulation. D-II
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is : 
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity 2K while that in the middle has thermal conductivity K. The left end of the combination is maintained at temperature 3T and the right end at T. The rods are thermally insulated from outside. In steady state, temperature at the left junction is \(T_1\) and that at the right junction is \(T_2\). The ratio \(T_1 / T_2\) is 