Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
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Exobiology refers to
Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.
A compressed spring possesses more energy than a spring of normal length because the compressed spring has
Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is
______________ was a philosopher and theologian from India during early 8th century who consolidated the doctrine of Advaita Vedanta.
In which year did Vivekananda participate in the Parliament of the World's Religions?
Who awarded the Kaisar-i-Hind medal of the British to Mahatma Gandhi for his contribution to ambulance services in South Africa?