दो गोलाकार कृष्णिकाओं (blackbodies) की त्रिज्याओं का अनुपात 1:2 है और उनके सतह के तापमान का अनुपात 2:1 है। उनकी कुल विकीर्ण शक्ति (radiated power) का अनुपात क्या होगा?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?