3.0 x 10-1 kg
3.0 x 10-2 kg
3.0 x 10-3 kg
3.0 x 10-4 kg
Correct answer is B
M = \(\frac{Q}{T} = \frac{6.9 \times 10^{4}}{2.3 \times 10^6} = 3 \times 10^{-2} kg\)
heat capacity of ice
specific heat capacity
specific latent heat of vaporisation of ice
specific latent heat of fusion of ice
Correct answer is D
No explanation has been provided for this answer.
120s
570s
600s
836s
Correct answer is B
t = \(\frac{mc\theta}{IV} = \frac{3 \times 4189 \times 60}{6 \times 120} = 570s\)
The silvered surface in a vacuum flask reduces heat loos due to
conduction
convection
radiation
evaporation
Correct answer is C
No explanation has been provided for this answer.
The sagging of overhead electrical cables is the consequence of
linear expansivity
superficial expansivity
cubic expansivity
conductivity
Correct answer is A
No explanation has been provided for this answer.