NEETPhysicsThermal Properties of Matter
The graph between two temperature scales P and Q is shown in the figure. Between upper fixed point and lower fixed point there are 150 equal divisions of scale P and 100 divisions on scale Q . The relationship for conversion between the two scales is given by : .
Options
- At Q 150 = t P - 180 100
- Bt Q 100 = t P - 30 150
- Ct P 180 = t Q - 40 100
- Dt Q 100 = t P - 180 150
Correct answer
B. t Q 100 = t P - 30 150
Step-by-step solution
From the graph For scale P , Lower fixed point = 180 - 150 = 30 ° P Upper fixed point = 180 ° P For scale Q , Lower fixed point = 0 ° Q Upper fixed point = 100 ° Q Thus, the relationship between the two scales P and Q is given by t P - 30 180 - 30 = t Q - 0 100 - 0 ⇒ t P - 30 150 = t Q 100