pls ans:
41. Heat conducting metarial is-
(1) Mercury (2) Water (3) Oil (4) Alcohol.
42. The radii of two spheres mad of same metal are r and 2r. These are heated to the same temperature in the same surrounding. The ratio of rates of decrease of their temperature will be.
(i) 1:1 (ii) 4:1 (iii) 1:4 (iv) 2:1
Dear Student ,
41. Here water , mercury ,oil , alcohol all are heat conducting material .
42. Here is a link which will help you to solve this question with proper explanation .
https://www.meritnation.com/ask-answer/question/two-spheres-of-the-same-material-have-their-radii-in-the/physics/9327287
Regards
41. Here water , mercury ,oil , alcohol all are heat conducting material .
42. Here is a link which will help you to solve this question with proper explanation .
https://www.meritnation.com/ask-answer/question/two-spheres-of-the-same-material-have-their-radii-in-the/physics/9327287
Regards