Two perfectly black spheres A and B having radii 8 cm and 2 cm are maintained at temperatures 127oC and 527oC respectively. The ratio of the energy radiated by A to that by B is
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
1 : 2
b
1 : 1
c
2 : 1
d
1 : 4
answer is B.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Rate of energy radiation Q=σAT4=σ4πR2T4∴ QAQB=RARB2TATB4=822.4008004=16116=1