Two cubes each weighing 22 g exactly are taken. One is of iron (d=8 × 103 kgm -3) and the other is of marble (D=3 × 103 kgm -3). They are immersed in alcohol and then weighed again

Question

Two cubes each weighing 22 g exactly are taken. One is of iron (d=8 × 103 kgm -3) and the other is of marble (D=3 × 103 kgm -3). They are immersed in alcohol and then weighed again (A) iron cube weighs less (B) iron cube weighs more (C) both have equal weight (D) nothing can be said

Tardigrade Admin · Accepted Answer

Since, density of iron is more than that of marble, the volume of iron is less than that of marble for the given mass. The upthrust of water on iron will be less than that on marble. Due to which iron cube will weight more.

Q. Two cubes each weighing 22g exactly are taken. One is of iron (d=8×103kgm−3) and the other is of marble (D=3×103kgm−3). They are immersed in alcohol and then weighed again

iron cube weighs less

iron cube weighs more

both have equal weight

nothing can be said

Since, density of iron is more than that of marble, the volume of iron is less than that of marble for the given mass. The upthrust of water on iron will be less than that on marble. Due to which iron cube will weight more.

Q. Two cubes each weighing $22 g$ exactly are taken. One is of iron $(d = 8 \times 1 0^{3} k g m^{- 3})$ and the other is of marble $(D = 3 \times 1 0^{3} k g m^{- 3})$ . They are immersed in alcohol and then weighed again