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) c) (iii) and (iv) b) (ii) and (iii) d) (i) and (iv)

Answer 1

Answer:

option D is the correct answer. I hope it helps you