Solve this The rate of cooling of a body is 0 50 C/minute, when the body is - Physics - Electromagnetic Induction

Question

Solve this

T h e   r a t e   o f   c o o l i n g   o f
  a   b o d y   i s   0 50 ° C / m i n u t
e ,   w h e n   t h e   b o d y   i s   50
° C   a b o v e   t h e   s u r r o u n d i n g
  W h a t   i s   t h e   r a t e   o f
  c o o l i n g   i f   t h e   b o d y  
i s   30 ° C   a b o v e   t h e   s u r r
o u n d i n g ?   24 ° C / h o u r   18 ° C / h o
u r   30 ° C / h o u r   12 ° C / h o u r

Pintu B. · Accepted Answer

Dear Student ,
The question can be easily solved using
the Newton's Law of Cooling, which is

<img alt="" src=
"https://img-nm%20mnimgs%20com/img/study_content/curr/1/11/12/189/8094/Chapter%2011_html_m26cd2ecf%20gif">
T0 is the surrounding temperature
T is the temperature of the body

Please refer the solution given at the following link: 
http://cbse meritnation
com/study-online/ncert-solutions/physics/218/8094/thermal-properties-of-matter/a-body-cools-from-80-deg-c-to-50-deg-c-i
And try to solve this You will get the answer
Regards