The physics department introduces a series of 'build-your-own-device' activities where students construct simple instruments such as a homemade seismograph, a periscope, and a photogate timer. The main purpose of this initiative is:

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?