Question

Question:2) A metallic circular disc
having a circular hole at its center
rotates about it axis passing
through the center and
perpendicular to it plane. when the
disc is heated , Which one of
the below is correct
A)
Its mass will decrease
B)
Radius will decrease
C)
Product of mass and square of the radius
will increase
D) Product of mass and square of the radius
will decrease​

Answer 1

Answer:

I think A

Explanation:

please mark me as brainliest answer

Answer 2

Answer:

B) Radius will decrease

Explanation:

I asked with my teacher, she told B is right