एक मानक कंप्यूटर लेज़र प्रिंटर के भीतर मुख्य रूप से किस प्रकार के लेज़र का उपयोग किया जाता है?

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?