Question

2. Which of these are applications of expansion
of solids?
(i) covering a metal wire with an
insulator
(ii) rusting of things made of iron
(iii) spaces between the railway tracks
(iv) heating the metal rim of bullock cart
wheels before they are fixed
a) (i) and (ii)
b) (ii) and (iii)
c) (iii) and (iv)
d) (i) and (iv)​

Answer 1

Answer:

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