श्वेत प्रकाश में सात रंग होते हैं। इन रंगों को अलग करने की मानक विधि क्या है?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?