Question

11. As the quantity of air inside
the bell jar decreases , the level
of ringing sound heard outside
O increases
O decreases
O remains same
O doubles
Required
»​

Answer 1

Answer:

remains same

Explanation:

Answer 2

Answer:

Decreases

Explanation:

Because sounds requires a medium to travel , hence when air( medium of traveling here) inside the jar decreases the ringing sound also devreases.

(conditions i am consiedering : bell jar is closed , the ringing device is inside the closed jar and the air inside is decreasing)

hope it helps!✨