Verified Solution • 2025–26 Session moderate

QJEEM25Ph5412: JEE Main 2025 Physics - Class 11 JEEM25Ph5412 Solution: For a particular ideal gas which of the following graphs…

For a particular ideal gas which of the following graphs represents the variation of mean squared velocity of the gas molecules with temperature?

Multiple Choice Options

  • A https://ik.imagekit.io/novatra/photos/e234e36dbd12117f3e7fb81e311e1ca16d7943465cb21640a88c7fc43caced1a.webp
  • B https://ik.imagekit.io/novatra/photos/b2e9601f04efe1adb822f22884513090af44acbfe4d86c72c0bc8cc6dfde62cf.webp
  • C https://ik.imagekit.io/novatra/photos/0d07e9444d2dfc63a90fcb4d44f538ae6e89ee412ef2c1b6c89ace94b8789f40.webp
  • D https://ik.imagekit.io/novatra/photos/6e243bf591db5880367e01c9cab2268aebd845a90c66f6c981e31e3c6c6e4324.webp

Step-by-Step Verified Solution

We know, for an ideal gas,

Vrms=3RTM

⇒Vms=Vrms2=3RTM

⇒Vms∝T

⇒Vms∝T

i.e. mean squared velocity is directly proportional to temperature.

⇒Vms=(3RM)T

by comparing it with y=mxy=mx (straight line)

JEE Main 2025 (Online) 28th January Morning Shift Physics - Heat and Thermodynamics Question 1 English Explanation

Hence, option 3 is correct.

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring