Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Which one of the following is the chemical name of heavy water?
Hydrogen oxide
Deuterium dioxide
Deuterium oxide
Heavy hydrogen oxide
Who among the following has coined the term ‘Quark’, the fundamental particles that make up protons and neutrons in an atomic nucleus?
Richard Feynman
Murray Gell-Mann
Albert Einstein
Niels Bohr
The mass number of an element is NOT changed when it emits __________.
Alpha and Beta radiations only
Alpha and Gamma radiations only
Beta and Gamma radiations only
Alpha, Beta and Gamma radiations
In March 2017, a High Court in India had accorded the status of living human entities to which two of the following rivers?
Brahmaputra and Ganga
Ganga and Yamuna
Yamuna and Godavari
Krishna and Kaveri
Which one of the following statements about land tenure system is NOT correct?
During the British rule in India three categories of land tenure system, viz. Zamindari, Mahalwari and Ryotwari were introduced
Under Zamindari system, land was held by one person or at the most by a few joint owners who were responsible for the payment of land revenue
Under the Mahalwari system, the agricultural lands belonged to the Government
Under Ryotwari system, the individual holders had the permanent rights over land and were directly responsible for payment of land revenue
