Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202325 Jan 2023Evening ShiftPhysicsThermal Properties of MatterActual

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

  1. At Q 150 = t P - 180 100
  2. Bt Q 100 = t P - 30 150
  3. Ct P 180 = t Q - 40 100
  4. 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

Practice Thermal Properties of Matter on Quantrex Academy →

More from Thermal Properties of Matter

As shown in the figure, an insulated container is fitted with a thermally conducting but immovable partition (P₁) and a freely movable but thermally insulated piston (P₂) . The par 2026The heat extracted out of x gram of water initially at 50°C to cool it down to 0°C is sufficient to evaporate (1000 - x) gram of water also initially at 50°C . The value of x (clos 2026The temperature of a metal strip having coefficient of linear expansion is increased from T₁ to T₂ resulting in increase of its length by L₁ . The temperature is further increased 2026Which of the following best represents the temperature versus heat supplied graph for water, in the range of -20^ C to 120^ C ? 202610 kg of ice at -10^ C is added to 100 kg of water to lower its temperature from 25 ^ C . Consider no heat exchange to surroundings. The decrement to the temperature of water is _ 2026A brass wire of length 2 m and radius 1 mm at 27^ C is held taut between two rigid supports. Initially it was cooled to a temperature of -43^ C creating a tension T in the wire. Th 2026Rods x and y of equal dimensions but of different materials are joined as shown in figure. Temperatures of end points A and F are maintained at 100^ C and 40^ C respectively. Given 2026An aluminium and steel rods having same lengths and cross-sections are joined to make total length of 120 cm at 30^ C . The coefficient of linear expansion of aluminium and steel a 2026 Full Thermal Properties of Matter list All JEE Main PYQs