दो लेंसों की विक्षेपण क्षमता (dispersive powers) का अनुपात 2 : 3 है। इन कांचों का उपयोग 20 cm फ़ोकस दूरी का एक अवर्णक लेंस संयोजन बनाने के लिए किया जाता है। दोनों व्यक्तिगत लेंसों की फ़ोकस दूरियाँ हैं:

Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

What was one major impact of India’s independence on its economy?