Aparna heated a bi-metallic strip made of two different types of metals for some time. After heating it, she observed that the metallic strip curved as shown in the figure. Which of the following would best explain the conclusion derived by Aparna about the experiment she had done?
A
Metal X is a better conductor of heat than metal Y.
B
Metal X is a poorer conductor of heat than metal Y.
C
Metal X is of better quality than metal Y.
D
Metal X is more flexible than metal Y.
Text Solution
Verified by Experts
The correct Answer is:
A
As there is expansion of metal X is more than metal Y. Hence we can say that metal X is a better conductor of a heat than metal Y.
Topper's Solved these Questions
NSO QUESTION PAPER 2018-19 SET A
SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION |1 Videos
NSO QUESTION PAPER 2018- 19 SET - B
SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|1 Videos
NSO QUESTION PAPER 2019- 20 SET - B
SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|1 Videos
Similar Questions
Explore conceptually related problems
Figure shown two adiabatic vessels, each containing a mass m of water at different temperature. The ends of a metal rod of length L, area of cross section. A and thermal conductivity K, are inserted in the water as shown in the figure. Find the time taken for the difference between the temperature in the vessels to become half of the original value. The specific heat capacity of water is s. Neglect the heat capacity of the rod and the container and any loss of heat top the atmosphere.
A bimetalic strip is made of two strips A and B, having co-efficeint of linear expansion as alpha_(A) and alpha_(B) . If alpha_(A) gt alpha_(B) which of the following describes the behavior fo the metallic strip when heated?
Mitaali, a class 10 student wanted to study the speed of reactions of different acids with zinc metal. For this, she conducted the following experiments using zinc metal in excess. She measured the volume of H_2 gas produced at regular time intervals and summarised her results in a graphical form. Which of the following graphs best represents the results obtained in experiments I, II and III?
Four rods made of iron, wood, paper, and plastic are connected by a straight metallic rod, as shown in the given figure. The rods are heated by a hot filament placed near them. After sometime, it is observed that the temperature of the iron rod is more than that of the other three rods. Heat transfer whitin the rods takes place by
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are the centres of these cavities. On heating the plate, which of the following quantities increases?
Figure. Shows the graphs of elongation versus temperature for two different metals. If these metals are employed to form a straight bimetallic strip of thickness 6 cm and heated, it bends in the form of an arc, the radius of cuvature chaging with temperature approximately as shown in the figure. The linear expansivities of the two metals are
SCIENCE OLYMPIAD FOUNDATION -NSO QUESTION PAPER 2018-19 SET A-ACHIEVERS SECTION
