Maximum height reached by a rocket fired with a speed equal to 50% of the escape speed from the surface of the earth is (where R is the radius of the earth)

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?