3281: In an atom, the order of filling up of the orbitals is governed by

(a) Aufbau principle
(b) Heisenberg's uncertainty principle
(c) Hund's rule
(d) Pauli's exclusion principle
3282: The International Rice Research Institute is located in:

(a) The Philippines

(b) Thailand

(c) Indonesia

(d) Malaysia
3283: Consider the following statements :

1. Balaghat is known for its diamond mines.

2. Majhgawan is known for its manganese deposits.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3284: Robert Webster is known for his work associated with which one of the following ?

(a) Influenza virus
(b) HIV/AIDS
(c) Cardiology
(d) Alzheimer
3285: Recently, Scientists observed the merger of giant blackholes billions of light-years away from the Earth. What is the significance of this observation?

(a) 'Higgs boson particles' were detected.

(b) 'Gravitational waves' were detected.

(c) Possibility of inter-galactic space travel through 'wormhole' was confirmed.

(d) It enabled the scientists to understand 'singularity'.