What is ectopic pregnancy? Can ectopic pregnancy continue upto full term?

What is the average period of pregnancy in human?

MTP is considered safe upto how many weeks of pregnancy.

Which vaccines can be admistered before pregnancy? When it can be?

A homogeneous rod XY of length 'L' and mass 'M' pivoted at the centre C such that it can rotate freely in vertical plane. Initially the rod is in the horizontal position .A blob of wax of same mass M as that of the rod falls vertically with the speed 'V' and the sticks to the rod midway between points 'C' and 'Y'. If the rod rotates with angular speed omega what will be angular speed in terms of V and L?

Whether vaccination can be done during or before pregnancy?

A weightless thread can bear tension upto 3.7 kg wt A stone of mass 500g is tied to it and revolves in a verticle circle of radius 4m What will be the maximum angular velocity of the stone if g = 10 m//s^(2) .

The height of a T.V. tower is 300 m. What is the maximum distance upto which T. V. signals can be received ? ( R = 6400 km)

Take a plastic bottle . Pierce it with a thick needle at the points 1,2,3 as shown in thefigure . Fill water in the bottle upto full height . As shown in the figure , water jets will be seen emerging and projecting out . The water jet emerging from the hole at the top will fall closest to the bottle . the jet from the lowest hole falls farthest from the bottle . also , jets coming out from the two holes at the same level fall atthe same distance from the bottle . what is understood from this ?:

Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example? Also, what term is used for such accidental findings?