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
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector
\(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :