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Consider the following actions:
1. Detection of car crash/collision which results in the deployment of airbags almost instantaneously
2. Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive.
3. Detection of the tilt of the smart phone which results in the rotation of display between portrait and landscape mode
In how many of the above actions is the function of accelerometer required?

Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in media?

In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?
1. Area of the hole in the lid
2. Temperature of the flame
3. Weight of the lid
Select the correct answer
using the code given below.

What is the purpose of ‘evolved Laser Interferometer Space Antenna (ELISA)’ project?

The terms `Event Horizon’, ‘Singularity’, `String Theory’ and `Standard
Model’ are sometimes seen in the news in the context of

In the context of modern scientific research, consider the following statements about ‘IceCube’,
a particle detector located at South Pole, which was recently in the news :
(1) It is he world’s largest neutrino detector, encompassing a cubic kilometer of ice.
(2) It is a powerful telescope to search for dark matter.
(3) It is buried deep in the ice.
Which of the statements given above is/are correct?

The efforts to detect the existence of Higgs boson particle have become frequent news in the
recent past. What is/are the importance/importances of discovering this particle?
(1). It will enable us to under-stand as to why elementary particles have mass.
(2). It will enable us in the near future to develop the technology of transferring matter from
one point to another without traversing the physical space between them.
(3). It will enable us to create better fuels for nuclear fission.
Select the correct answer using the codes given below.

The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

Ball bearings are used in bicycles, cars, etc., because

Consider the following statements: If there were no phenomenon of capillarity 1. it would be difficult to use a kerosene lamp 2. one would not be able to use a straw to consume a soft drink 3. the blotting paper would paper would fail to function 4. the big trees that we see around would not have grown on the earth Which of the following statements given above are correct?