Qur'an

Duration of one alif in tajweed

Q:

1. What is the duration of one alif in tajweed? How long should we stretch it?

2. I have seen in ‘simple rules of tajweed’ book that short madd duration is two alif. Can I stretch short madd for 3 Alif duration?

3. If sign of the short madd appears at the end of an ayat and we stop there, how long should the madd be stretched? I have heard in many tilawat that they stretch it for one alif when it appears at the end of ayat.