एक उत्तल लेंस -2 का आवर्धन उत्पन्न करता है, जब एक वस्तु को इससे X सेमी की दूरी पर रखा जाता है। यदि प्रतिबिंब की दूरी 40 सेमी है, तो X का मान क्या है?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?