AP EAMCET201921 Apr 2019Evening ShiftPhysicsThermal Properties of MatterActual
Two metal plates P and Q of same material are arranged as shown in the figure. If both the plates are uniformly heated through same range of temperature, then
Options
- ABoth x and y increase
- BBoth x and y decrease
- Cx decreases and y increases
- Dx increases and y decreases
Correct answer
C. x decreases and y increases
Step-by-step solution
From the phenomenon of thermal expansion, plates P and Q are uniformly heated through the same range of temperature. Thus, both the plates expand outwards. Hence, both distance x and y decrease.