Physics - Heat & Thermo Question with Solution | TestHub

In an experiment with a high-energy beam, hydrogen ions each of mass $1.67\times 10^{-27}$ kg strike a stationary and thermally insulated target with a velocity of $2\times 10^7$ m $s^{-1}$ at the rate of $10^{15}$ ions per second. If the mass of the target is 500 g and its specific heat is $0.09$ cal $g^{-1}$°$C^{-1}$, find the time taken for the temperature of the target to rise by $100^{\circ }$C, assuming the whole energy of the ions is converted to heat and absorbed by the target.