An incandescent lamp consuming \[P=54\text{ }W\]is immersed into a transparent calorimeter containing \[V={{10}^{3}}c{{m}^{3}}\]of water. In 420s the water is heated by\[4{}^\circ C\]. The percentage of the energy consumed by the lamp that passes out of the calorimeter in the form of radiant energy is

An incandescent lamp consuming \[P=54\text{ }W\]is immersed into a tra

1.	An incandescent lamp consuming \[P=54\text{ }W\]is immersed into a transparent calorimeter containing \[V={{10}^{3}}c{{m}^{3}}\]of water. In 420s the water is heated by\[4{}^\circ C\]. The percentage of the energy consumed by the lamp that passes out of the calorimeter in the form of radiant energy is
A.	81.5%
B.	0.26
C.	40.5%
D.	0.515
Answer» C. 40.5%