A) 2kg of ice
B) 200 g of ice
C) 20g ice
D) 2g ice
Correct Answer: B
Solution :
Law of conservation of energy is valid. Potential energy is the energy possesed by a body due. to its weight. It is given by \[PE=mgh\] where, m is mass, g acceleration due to gravity and h is height This potential energy is utilized in giving latent heat to ice \[mL=mgh\] Given \[~m=3.5kg,\text{ }g=10m/{{s}^{2}},\text{ }h=2000m\] \[L=3.5\times {{10}^{5}}J/s\] \[m=\frac{mgh}{L}\] \[m=\frac{3.5\times 10\times 200}{3.5\times {{10}^{5}}}\] \[m=02\]kg of ice Also, \[1\,kg={{10}^{3}}g\] \[m=200\text{ }g\] of iceYou need to login to perform this action.
You will be redirected in
3 sec