Physical Research Laboratory was founded by ____.
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Shahjahan was the _____Mughal ruler.
Which empire is regarded as the Golden Age of Hinduism?
Before Champaran Satyagraha, the farmers of Champaran used to follow the 'Panchkathiya' system, whereby five katthas of land in a bigha had to be planted with ___.
During the reign of which dynasty was the Great Wall of China constructed?
The Lena river passes through which country?
If x+5+1x+1=6 then the value of (x+1)3+1(x+1)3 is
What is the simplified value of (cosec A + sin A)(cosec A – sin A)?