Question

pls ans both 3rd and 4th....centre of mass...​

Answer 1

$\huge\mathfrak\pink{\underline{\underline{AnSwer}}}$

★ It is very easy , but lil' tricky question ★

→ You don't have to solve this, just check options.

→ since, length of both rods are same so..and dut to different materials , there mass (density) are different.

→ center of mass will shift in that direction, whose density is greater

→ position of C.O.M will change for only one rod whose masd is greater.
and for other it will remain L/2

→ so, at least one coordinate is L/2

★ Answer is option 2 ★

Happy to help!!

:)