What will be the papers needed for tourist visa in...

You can obtain a visit visa to the United States. You should sign in to the official website to obtain a visa. Attach recent
digital photos, fill out the application form, pay the visit visa' fees and attach the passport copy (valid for at least six months).
Go to the US embassy in your country of residence for your to appointment, hold with you your passport, the code that
you received when you filled out the application form, the personal photos, the payment receipt, the appointment set date page from the embassy.
fees are based on the principle of reciprocity: when a foreign government imposes duties on US citizens for certain types of visas, the United States will impose a reciprocal fee on nationals of that country / region of authority for similar types of visas.
You can find out about these fees through the Embassy website:
American embassy