First slide

Thermal expansion

Question

Percentage increase in volume $\frac{Δ V}{V} \times 100 = x α Δ t \times 100$ where $x =$ $(w h e r e α = c o e f f i c i e n t o f l i n e a r e x p a n s i o n o f t h e s o l i d; ∆ t i s c h a n g e i n t e m p e r a t u r e o f s o l i d)$

Easy

A

1
B

2
C

3
D

4

Solution

Percentage increase in volume= $γ d t x 100 = 3 α d t x 100 = x α d t s o x = 3$
$c o e f f i c i e n t o f v o l u m e e x p a n s i o n o f a s o l i d i s γ = 3 α w h e r e α = c o e f f i c i e n t o f l i n e a r e x p a n s i o n o f t h e s o l i d$

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