Physics-
General
Easy
Question
Two different rods A and B are kept as shown in figure. The variation of temperature of different cross sections with distance is plotted in a graph shown in figure. The ratio of thermal conductivities of A and B is
- 2
- 0.5
- 1
- 2/3
The correct answer is: 0.5
Related Questions to study
Physics-
Three rods of the same dimensions have thermal conductivities and . They are arranged as shown, with their ends at , and . The temperature of their junction is
Three rods of the same dimensions have thermal conductivities and . They are arranged as shown, with their ends at , and . The temperature of their junction is
Physics-General
Physics-
Bars of two different metals are bolted together, as shown in figure. The distance x does not change with temperature if:–
Bars of two different metals are bolted together, as shown in figure. The distance x does not change with temperature if:–
Physics-General
Physics-
The variation of lengths of two metal rods A and B with change in temperature is shown in figure. The ratio of A B is:–
The variation of lengths of two metal rods A and B with change in temperature is shown in figure. The ratio of A B is:–
Physics-General
Physics-
In a vertical U-tube containing a liquid, the two arms are maintained at different temperature and . The liquid columns in the two arms have heights and respectively. The coefficient of volume expansion of the liquid is equal to
In a vertical U-tube containing a liquid, the two arms are maintained at different temperature and . The liquid columns in the two arms have heights and respectively. The coefficient of volume expansion of the liquid is equal to
Physics-General
Maths-
Two fixed points A and B are taken on the rectangular coordinate axes such that OA = a and OB =b Two variable points P and Q are taken on the same axes so that OP+OQ=OA+OB The locus of the intersection of AQ and BP is
Two fixed points A and B are taken on the rectangular coordinate axes such that OA = a and OB =b Two variable points P and Q are taken on the same axes so that OP+OQ=OA+OB The locus of the intersection of AQ and BP is
Maths-General
Maths-
M is the midpoint of side AB of equilateral triangle ABC p is a point on BC such that AP+PM is minimum If AB =20 then the value of AP +PM is
M is the midpoint of side AB of equilateral triangle ABC p is a point on BC such that AP+PM is minimum If AB =20 then the value of AP +PM is
Maths-General
Maths-
If the line cuts the curve at the points A,B and then OA.OB.OC =-( where O is origin)
If the line cuts the curve at the points A,B and then OA.OB.OC =-( where O is origin)
Maths-General
Maths-
represent two parallel lines if
represent two parallel lines if
Maths-General
Maths-
In is any point inside a triangle such that area of are equal Line AP cut BC at , area of is 5 unit then area of is
In is any point inside a triangle such that area of are equal Line AP cut BC at , area of is 5 unit then area of is
Maths-General
Maths-
Maths-General
Maths-
In a right angled triangle ABC, then
In a right angled triangle ABC, then
Maths-General
Maths-
If then
If then
Maths-General
Maths-
Maths-General
Maths-
The value of is
The value of is
Maths-General
Maths-
If , then
If , then
Maths-General