Question

power of the concave lens is 2D. It's focal length Will be:


























please full solution एक कॉपी पर करके भेज दीजिए 50 pts​

Answer 1

Explanation:

1917, he travelled in champaran, Bihar, to inspire the peasants to struggle against oppressive plantation system.

2) In 1918, he organized Satyagraha to support peasants of Kheda in Gujarat.

3) In 1918, he went to Ahmedabad to organize this movement amongst cotton mill workers.

4) In 1919, he launched Satyagraha against Rowlatt act.