The angular inertia (moment of inertia) of a pendulum depends on its mass (B) and the length (C) of the pendulum.
Shape (A) and Gravity (D) influence pendulum dynamics but are not direct contributors to angular inertia.
This concept is critical in understanding the motion of pendulums in physics and engineering.
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: