Question

A cylindrical metal rod is shaped into a ring with a small gap as shown. On heating the system: (See image)
(a) x, r and d decrease

(b) x and r increase, d decrease

(c) x, r and d all increase

(d) x and r decreased, d remains constant

Answer 1

Answer:

On heating the system; x, r and d all increase, since the expansion of isotropic solids is similar to true photographic enlargement.

Explanation:

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