4336: Mach Number is a term associated with the speed of:

(a) Ships

(b) Cars

(c) Aeroplanes

(d) Light
4337: In the context of digital technologies for entertainment, consider the following statements:

1. In Augmented Reality (AR), a simulated environment is created and the physical world is completely shut out.
2. In Virtual Reality (VR), images generated from a computer are projected onto real-life objects or surroundings.
3. AR allows individuals to be present in the world and improves the experience using the camera of smart-phone or PC.
4. VR closes the world, and transposes an individual, providing complete immersion experience.

Which of the statements given above is/are correct?

(a) 1 and 2 only

(b) 3 and 4

(c) 1, 2 and 3

(d) 4 only
4338: Which of the following is true about the Bats?

1. Bats are mammals

2. Bats have wings which are actually the modified forelimbs

3. Bats are nocturnal in habit

(a) 1, 2 & 3

(b) 2 & 3

(c) 1 & 3

(d) 1 & 2
4339: In which one of the following countries are 75 percent of seats in both Houses of Parliament filled oh the basis of first-past-the-post system and 25 per cent on the basis of Proportional Representation system of elections ?

(a) Germany

(b) Italy

(c) France

(d) Russia
4340: The dispute regarding the election of Prime Minister and President of India can be decided by:

(a) High Court

(b) Election Tribunal

(c) Chief Election Commissioner

(d) None of the above