2021: With reference to Bitcoins, sometimes seen in the news, which of the following statements is/are correct?
1. Bitcoins are tracked by the Central Banks of the countries.
2. Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with a Bitcoin address.
3. Online payments can be sent without either side knowing the identity of the other.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2022: "Ghadar party" in U.S.A. was formed by:
(a) V. D. Savarkar
(b) Lala Har Dayal
(c) Swami Varma
(d) Raja Pratap Singh
2023: The area of an ellipse is twice that of a circle. The major diameter of the ellipse is twice that of the minor diameter. The radius of the circle is
(a) 50% of minor diameter of the ellipse
(b) 50% of major diameter of the ellipse
(c) minor diameter of the ellipse
(d) major diameter of the ellipse
2024: Which one of the following ports handled the north Indian trade during the Gupta period ?
(a) Tamralipti
(b) Broach
(c) Kalyan
(d) Cambray
2025: Swaraj Party was established to:
(a) Share power in the Government
(b) Ask the British to leave India
(c) To enter the Councils and wreck the Government from within
(d) Ask the people to fight against the British