Answer : 1. "रावण हत्था "
Explanation :

1. The folk instrument used by Bhopa in 'Pabuji Ki Phad' is Ravanahatha. It is a type of musical instrument made of a coconut bowl. There is a hole at the bottom of this bowl and there is a wooden stick in this hole. Bhopa sings 'Pabuji ki Phad' by playing this stick.

2. 'Pabuji Ki Phad' narrates the life and bravery of Pabuji, the folk deity of Rajasthan. It is a type of folk painting which is made of cloth. 'Pabuji Ki Phad' is sung by Bhopa. Bhopa plays Ravanahatha while singing 'Pabuji Ki Phad'.