2 ms/div की क्षैतिज स्वीप गति वाला एक कैथोड रे ऑसिलोस्कोप (CRO) एक तरंगरूप प्रदर्शित करता है जो एक पूर्ण चक्र में 4 डिवीजनों को घेरता है। सिग्नल की आवृत्ति क्या 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?