20 सेमी परिमाण की फोकस दूरी वाला एक अवतल दर्पण, दर्पण से 60 सेमी की दूरी पर रखी एक वस्तु का वास्तविक प्रतिबिंब बनाता है। प्रतिबिंब की दूरी (सेमी में) होगी:

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?