Soham De
from
DPS, Nerul, Mumbai
Subject :NSO Class : Class 5
Tanmay heated a bimetallic strip made up of metal X and metal Y. After a few minutes, he observed that it curled as shown.
What can be concluded from this experiment?
A Metal X expands more than metal Y.
B Metal Y expands more than metal X.
C Metal X expands and metal Y contracts.
D Metal Y expands and metal X contracts.
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Hitanshi Behera
from
Loyola School , Bhubaneswar
Class : Class 4
sof does not reply that is why we are confused
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Soumyaraj Roy
from
Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Sumit Singhal , this is a bimetallic metal . Here , the two metals cannot go away from each other . So here , if y expands than x will also expand , and if x expands than y will also expand . I am getting confusion between A and B .
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Bhargavi
from
Bethany, Bangalore
Class : Class 1
The answer is B because the question says that he HEATED both the metals (most metals expand on heating) and Y has expanded more than X
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Ishaan singhal
from
CCWS, Jaipur
Class : Class 3
as if we will contract metal x so it is not neccessery that y will contract if we contract metal y x has to be conyracted with it ans should be a
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Hitanshi Behera
from
Loyola School , Bhubaneswar
Class : Class 4
ans should be D as if metal x contracts and metal y expands then the 2 metals will bend inward an as an ellusion we see that y is longer than x
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Saipriya
from
Sankara, Chennai
Class : Class 8
B m kids because Y is only curled much . dont get angry
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Anahita Baruah
from
DPS Bangalore East, Bengaluru
Class : Class 2
All metal expands on heating. Here metal Y expands more which leads to curling of both X and Y. B is the correct option.
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Hitanshi Behera
from
Loyola School , Bhubaneswar
Class : Class 4
iron-nickel alloy notable for its lack of expansion or contraction with temperature changes. hence all metals do NOT expand
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Ashmi Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
B because if Y expands and X contracts, X will be a lot smaller than Y. Here, both are almost the same size.