Identifying the Non-Traditional Contraceptive Method:
Periodic abstinence – A natural method of contraception.
Lactational amenorrhea – A natural method based on breastfeeding-induced hormonal changes.
Coitus interruptus – A traditional method where withdrawal occurs before ejaculation.
Vaults – A modern contraceptive method involving the insertion of a device, not a traditional method.
Thus, the correct answer is (4) Vaults.
Match List I with List II :
Choose the correct answer from the options given below :
The current passing through the battery in the given circuit, 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