SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Temperature difference of 1200C is maintained between two ends of a uniform rod AB of length 2L.  Another bent rod PQ, of same cross-section as AB length , is connected across AB(See figure).  In steady state, temperature difference between P and Q will be close to:

a.

600C

b.

750C

c.

350C

d.

450C


Question ID - 50053 :-

Temperature difference of 1200C is maintained between two ends of a uniform rod AB of length 2L.  Another bent rod PQ, of same cross-section as AB length , is connected across AB(See figure).  In steady state, temperature difference between P and Q will be close to:

a.

600C

b.

750C

c.

350C

d.

450C

1 Answer
5876 Votes
3537

Answer Key : (d) -

 

PQ=  + R =  = 450C



Next Question :

A heavy ball of mass M is suspended from the ceiling of a car by alight string of mass m (m<<M).  When the car is at rest, the speed of transverse waves in the string is 60 ms−1.  When the car has acceleration, a the waves-speed increases to 60.5ms−1, the value of a, in terms of gravitational acceleration g, is closest to :

a.

 

b.

 

c.

 

d.

 


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