एक आदर्श द्रव वृत्ताकार अनुप्रस्थ काट वाले एक पाइप से बहता है जिसमें दो खंड हैं जिनके व्यास क्रमशः 2.5 सेमी और 3.75 सेमी हैं। इन दोनों खंडों में द्रव प्रवाह के वेगों का अनुपात क्या होगा?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?