त्रिज्या r और ऊंचाई h वाला एक लंब वृत्तीय बेलन (right circular cylinder) एक गोले के अंदर अंकित है। गोले का व्यास D है। गोले के व्यास D के संदर्भ में बेलन की ऊंचाई h और उसकी त्रिज्या r के बीच क्या संबंध है?

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?