Question bank/JEE Main/Physics

The densities of wood and benzene at 0 ºC are 880 kg m^-3 and
900 kg m^-3, respectively. The coefficientsof volume expansion of wood
is 1.2 × 10^-3 ºC^-1.and that of benzene is
1.5 × 10^-3 ºC^-1. Value oftemperature (in ºC) at which a piece of
this wood would just sink in benzene at the same temperature isT. Then
find value of 3×10^-4T (where T is tempture in ºC).
ydM+h rFkk csathu dk ?kuRo 0ºC ij Øe'k 880 kg m^-3rFkk 900 kg
m^-3gSA ydM+h rFkk csathu izlkj xq.kkad Øe'k 1.2 × 10^-3
C^-1rFkk 1.5 × 10^-3 ºC^-1gSA ftl rkieku ij ydM+h csathu esa
iw.kZ:Ik ls Mqcrh gS rks og rkieku T (ºC esa) gSA rc 3×10^-4T

A40B20C60D80

Show answer and solution▾

For just sink condition
Mqcus

Source: Grass-G / Ph-27 Physics paper 2 15 Jan.docx