Verified Solution • 2025–26 Session moderate

QJEEM20Phcbb0: JEE Main 2020 Physics - Class 11 JEEM20Phcbb0 Solution: The plot that depicts the behavior of the mean free time t…

The plot that depicts the behavior of the mean free time t (time between two successive collisions) for the molecules of an ideal gas, as a function of temperature (T), qualitatively, is:
(Graphs are schematic and not drawn to scale)

Multiple Choice Options

  • A https://ik.imagekit.io/novatra/photos/04870409d61122a8441fb4a55057892986024e30d755bedc7b8ca496984c6026.webp
  • B https://ik.imagekit.io/novatra/photos/c793f1df0aecd80495047e2cb0734025246ace9d9151559a1ef10e2321e34d4b.webp
  • C https://ik.imagekit.io/novatra/photos/71e043311637f654af41914b16d2a063d9d4884e485d1b9c90ec1d095ee33b80.webp
  • D https://ik.imagekit.io/novatra/photos/83204250d2e53df471358d5fced37f83c84506d637903f08992c094a2c040744.webp

Step-by-Step Verified Solution

Mean free time =
Mean free path
Average speed

= 12πD2n8RTπM

∴ t ∝ 1T

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