I want to transfer my apps from my old phone on to my new phone but when new phone asks for old phone password it says password is incorrect

and it asks for old phone password and when I enter it says not correct?

See this Apple article: If you forgot your Apple ID password

If you forgot your Apple ID password - Apple Support

Then see this Apple article: What to do after you change your Apple ID or password

What to do after you change your Apple ID or password - Apple Support

Apps don't transfer from iPhone to iPhone, only the app data along with app links to the App Store gets transferred. Stay connected to the internet and continue using the iPhone. Depending on the internet speed all apps will get downloaded from the App Store automatically.

Apps & Settings --> Apart from the Apps following will also not get transferred.

1. Content from the iTunes and App Stores or PDFs downloaded directly to Apple Books
2. Content synced from iTunes, like imported MP3s or CDs, videos, books, and photos
3. Data already stored in iCloud, like iCloud Photos, iMessages, and text (SMS) and multimedia (MMS) messages
4. Face ID or Touch ID settings
5. Apple Pay information and settings
6. Apple Mail data
7. Apple Music

As long as you are using the same Apple ID & password, you can redownload the apps to your new iPhone. See:

Redownload apps and games from Apple - Apple Support