Two balls of same material and same surface finish \( \mathrm{P} \)...

Channel:
PW Solutions
Subscribers:
458,000
Published on ● Video Link: https://www.youtube.com/watch?v=me8YA0Tu0gw


Duration: 2:31
2 views
0

Two balls of same material and same surface finish
\( \mathrm{P} \) have their diameters in the ratio \( 1: 2 \). They are heated

W to the same temperature and are left in a room to cool by radiation, then the initial rate of loss of heat
(1) Will be same for the balls
(2) For larger ball is half that of other ball
(3) For larger ball is twice that of other ball
(4) For larger ball is four times that of the other ball
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-04-08Two walls of thickness \( d_{1} \) and \( d_{2} \), thermal P condu...
2023-04-08Bottom of a lake is at \( 0^{\circ} \mathrm{C} \) and atmospheric P...
2023-04-08Parallel rays of light of intensity \( I=912 \mathrm{Wm}^{-2} \) ar...
2023-04-08Three very large plates of same area are kept parallel and close to...
2023-04-08The rectangular surface of area \( 4 \mathrm{~cm} \times 2 \mathrm{...
2023-04-08A body cools down from \( 80^{\circ} \mathrm{C} \) to \( 60^{\circ}...
2023-04-08Two bodies \( A \) and \( B \) of same mass, area and surface P fin...
2023-04-08A black body, which is at a high temperature \( T K \), P thermal r...
2023-04-08Emissive power of an ideal black body at \( 127^{\circ} \mathrm{C} ...
2023-04-08A body cools in 10 minutes from \( 60^{\circ} \mathrm{C} \) to \( 4...
2023-04-08Two balls of same material and same surface finish \( \mathrm{P} \)...
2023-04-08A solid cylinder of length \( L \) and radius \( r \) is heated upt...
2023-04-08The temperature of a perfect black body is \( 727^{\circ} \mathrm{C...
2023-04-08The plots of intensity versus wavelength for three \( \mathrm{P} \)...
2023-04-08Instantaneous temperature difference between cooling body and the s...
2023-04-08The rate of dissipation of heat by a black body at \( \mathrm{P} \)...
2023-04-08A body is in thermal equilibrium with the P surrounding: W (1) It ...
2023-04-08The outer faces of a rectangular slab made of equal P thickness of ...
2023-04-08When the temp of black body increase it is observed that wavelength...
2023-04-08Which of the following statement is correct for ideal \( \mathrm{P}...
2023-04-08Three rods of same material, same area of cross- \( \mathrm{P} \) s...


Tags:
pw