Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science) 
		 
			 
			 
			 
			 
			 
			 
			 
			 
			 30 points
 30 points >
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Ruby negi![best-answer]() 
			
https://www.google.com/url?sa=t&source=web&rct=j&url=https://amp.doubtnut.com/question-answer-physics/a-rod-of-length-l-and-uniform-cross-sectional-area-has-varying-thermal-conductivity-which-changes-li-15634966&ved=2ahUKEwjE_PLc0p3vAhVPAHIKHSkmC9wQFjAAegQIAxAD&usg=AOvVaw0SToN4uPJzZcue0mfLM_YL&cf=1 this link will help u to solve