Question

3. State true or false. Correct the false statements:
a) Mercury expands more than alcohol for per degree rise in temperature.
b) Telephone cables become loose in summer and tight in winter.
c) Thermal expansion does not depend upon the nature of the material.
d) Between copper and iron, copper expands more than iron.

Answer 1

Answer:

t ,f , t,f

please mark me as brain list

Answer 2

a. true

b. true

c. false (watch the attachment for its correction)

d. true