Through which does light travel best?
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If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___.
In April 2017, the G20 Digital Ministerial Meeting on Digital Economy was held in which country?
In Microsoft Word, _____ is a position we set for placing and aligning text on a page.
The first Europeans to come to India were
World War II started in the year?
Charles Darwin, the famous evolutionist, proposed his theory in which one of his books ?
What was invented by Zacharias Jansen?