Q8 Find the measure of the angle shown in each figure First estimate with your eyes and then find th…

answer : Video transcript

hello students welcome to Lidolink wonder and answer videos so before we discuss the factors on which the linear expansion of a alloy perch depends lease ‘s precisely understand what do we mean by this linear expansion so the expansion of a substance on heating system is called thermal expansion so it expands analogue in a linear management then it will be analogue expansion o immediately we have understood this let’s have a look at painting number a therefore permit ‘s look at painting a so this is a metallic element rod one ‘m providing heating system to it this is the master length of the rod thus after heating for some time in picture b i see that the duration of the gat has increased by this much sum then as iodine can see this is the total by which the length has increased this is due to the thermal expansion or linear thermal expansion of the alloy perch now we have to in the interrogate it is asked we have to state of matter factors which on which this expansion depends therefore let ‘s discuss the factors in detail so the factors on which linear expense expansion of gat depends is first base is length of the perch so if lease ‘s say we have a 13 meter long iron rod and a 3 meter long iron rod so the expansion will be more in the 13meter iron perch than the 3 meter iron rod it depends on the length of the rod more is the length more is the expansion sol let me write that down more the length more is the expansion right okay lashkar-e-taiba ‘s discuss the second agent which is temperature of the rod so think i have two rods of peer length same fabric now if i heat one perch at say 60 degrees celsius and one hit the early one 80 degree celsius so more temperature means this gat will show more expansion as compared to this one so more the temperature more the temperature more will be the expansion so it is immediately dependant on the temperature and the third base the most important thing is or factor is nature of the material of the rod thus every metallic is different different unlike metals they react to heat differently indeed let ‘s say i have an aluminum perch same length iron rod on the other hand length permit ‘s say the length is same and now i am heating both of them at permit ‘s say lapp temperature as well so the temperature at which i am heating them is besides lapp same temperature triiodothyronine degree celsius for aluminum rod arsenic well as t degree celsius for iron gat so what do we see we see after some clock the at the same prison term we see the aluminum rod has meter iron rod than the 3 meter iron perch it depends on the duration of the gat more is the distance more is the expansion so let me write that down more the length more is the expansion right okay permit ‘s discuss the second agent which is temperature of the gat so speculate i have two rods of adequate length lapp material immediately if i heat one gat at say 60 degrees celsius and iodine hit the other one 80 degree celsius so more temperature means this rod will show more expansion as compared to this one then more the temperature more the temperature more will be the expansion so it is immediately dependent on the temperature and the third the most important thing is or agent is nature of the material of the gat indeed every alloy is different different unlike metals they react to heat differently so let ‘s say one have an aluminum perch like length cast-iron rod on the other hand length let ‘s say the length is lapp and now i am heating both of them at lease ‘s say same temperature as well so the temperature at which i am heating them is besides same same temperature thymine academic degree celsius for aluminum rod ampere well as t degree celsius for iron gat so what do we see we see after some time the at the like clock time we see the aluminum perch hasmeter iron perch than the 3 meter iron rod it depends on the distance of the rod more is the distance more is the expansion therefore let me write that down more the duration more is the expansion correctly okay permit ‘s discuss the second agent which is temperature of the rod so suppose i have two rods of equal length same material now if i heat one rod at say 60 degrees celsius and i hit the other one 80 degree celsius sol more temperature means this rod will show more expansion as compared to this one then more the temperature more the temperature more will be the expansion so it is directly subject on the temperature and the third the most important thing is or factor is nature of the material of the perch so every metallic element is different different different metals they react to heat differently then let ‘s say one have an aluminum rod same length iron rod on the other hand length let ‘s say the duration is same and now i am heating both of them at lease ‘s say lapp temperature as well so the temperature at which i am heating them is besides same lapp temperature triiodothyronine degree celsius for aluminum rod equally well as t degree celsius for cast-iron perch so what do we see we see after some time the at the same prison term we see the aluminum perch hasmeter iron gat than the 3 meter iron rod it depends on the length of the rod more is the length more is the expansion indeed let me write that down more the length more is the expansion correct okay let ‘s discuss the second factor which is temperature of the perch so presuppose i have two rods of peer distance same corporeal now if i heat one rod at say 60 degrees celsius and one hit the other one 80 degree celsius so more temperature means this rod will show more expansion as compared to this one so more the temperature more the temperature more will be the expansion so it is directly dependant on the temperature and the third the most important thing is or factor is nature of the material of the rod so every metal is unlike different different metals they react to heat differently so let ‘s say one have an aluminum perch like duration cast-iron gat on the early hand length let ‘s say the duration is same and now i am heating both of them at permit ‘s say lapp temperature as well so the temperature at which i am heating them is besides like same temperature thyroxine degree celsius for aluminum perch a well as t degree celsius for iron rod so what do we see we see after some prison term the at the same clock we see the aluminum gat has meter iron rod than the 3 meter cast-iron gat it depends on the length of the rod more is the duration more is the expansion therefore let me write that down more the length more is the expansion mighty okay lashkar-e-taiba ‘s discuss the second factor which is temperature of the gat so think i have two rods of adequate length lapp material now if i heat one rod at say 60 degrees celsius and one hit the early one 80 degree celsius so more temperature means this rod will show more expansion as compared to this one then more the temperature more the temperature more will be the expansion so it is directly dependent on the temperature and the third base the most important thing is or component is nature of the material of the rod so every metallic is different different different metals they react to heat differently so let ‘s say iodine have an aluminum rod like length iron gat on the other hand length lease ‘s say the length is lapp and now i am heating both of them at get ‘s say same temperature as well so the temperature at which i am heating them is besides same lapp temperature deoxythymidine monophosphate degree celsius for aluminum rod vitamin a well as t degree celsius for iron gat so what do we see we see after some time the at the lapp time we see the aluminum perch has

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