Q. Given below are four methods (i - iv) and their modes of action (a - d) in achieving contraception. Select their correct matching from the four options that follow Method: (i) The pill (ii) Condom (iii) Vasectomy (iv) Copper T Mode of Action: (a) Prevents sperms reaching cervix (b) Prevents implantation (c) Prevents ovulation (d) Semen contains no sperms
A) (i)-(b), (ii)-(c), (iii)-(a), (iv)-(d)
B) (i)-(c), (ii)-(a), (iii)-(d), (iv)-(b)
C) (i)-(d), (ii)-(a), (iii)-(b), (iv)-(c)
D) (i)-(c), (ii)-(d), (iii)-(a), (iv)-(b)
Explanation
[Solution from source] Pills block ovulation (and implantation), a condom is a barrier that stops sperm reaching the cervix, vasectomy cuts the vas deferens so semen has no sperms, and Copper-T acts in the uterus against fertilisation and implantation. Matching a condom to 'semen contains no sperms' confuses a barrier with a surgical method. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.