A copper rod of 88 cm and an aluminium rod of unknown length have their increase in length independent of increase in temperature.

We know that R = ρl/A R ∝ l R1/R2 = l1/l2 Given ∵ l2 = 2l1 R1 = 0.60 hm R2/R1 = l2/l1 R2/R1 = 2l1/l1 R2 = 2 R1 R2 = 2 x 0.60 R2 = 1.2 hm

If the values of a thermometric property are P1 and P2 at the ice point (0 °C) and steam point (100 °C) respectively and the value of this property is PT at unknown temperature...

Correct option is  D) 57° C

At new temperature T °C, change in length of rod is, ∆LS = L0(αS∆T) = 50.00(12 × 10-6 × 100) = 0.06 cm. Hence, the actual length of rod at T °C, LS = 50.06 cm Due to change in...

Correct option is: (B) 120.18 cm

Correct option is: (B) 100 °C/m

Correct option is: (A) 35 °C

B) Becomes colourless

i. Cu2S + O2 → 2Cu + SO2 ii. Sulphur undergoes an increase in the oxidation state from -2 (in Cu2S) to +4 (in SO2). iii. Copper accepts one electron and undergoes a decrease...

B) Square only