Question

- If heat radiated by a certain body per unit time varies
directly with the square root of the excess of the
temperature of the body over the ambient
temperature. The heat radiated by the body in
1 second is 12 joules, when the temperature of the
body is 34°C. Find the temperature of the body
when the heat radiated in 1 second was 20 joules.
(Assume the ambient temperature to be 25°C).
(A) 60°C (B) 45°C (C) 40°C (D) 50°C​

Answer 1

Answer:

D) 50°C

Step-by-step explanation:

20/12 = √(T-25)/√(34-25)

squaring on both sides,

25/9 = (T-25)/9

T = 50°C