In order to get rak'ah, one should have a minimum time of ruku 'with the Imam 7351456585

In order to get rak'ah, one must join the imam in ruku '. After the Imam has risen from the ruku ', that is, after the hands have been lifted from the head and the knees, it will not be considered that he has received the rak'ah. Abdullah bin Umar. Said- If you find the imam, he will return, if he rises, he will rise, and if he rises, he will rise. If you find the Imam bowing and you also bow before the Imam gets up from the bow, then you will be considered to have received the rak'ah. But if the Imam got up from the ruku before you went to the ruku, then you did not get this rak'ah. (Abdur Razzaq in Musannaf, Narration 3371) In the case in question, since you have bowed before Imam Sahib stood in the first position, it will be assumed that you have received the second rak'ah. And in the second case, since Imam Sahib stood before your ruku ', you did not get that rak'ah. However, perform the prostrations of this rak'ah with the Imam as usual. 1146218649