Direction: Read the following passage carefully and answer the questions. Your answer to these questions should be based on passage only.

Mandela recollects that it was almost impossible for a black man in south Africa to fulfill his obligation to his family and society because of the system of apartheid practiced by the white rulers. He began to hanker after freedom when he realized that his freedom had been taken away from him when he reached manhood. He yearned for the basic and honorable freedoms of achieving his potential, of marrying, having a family-the freedom not to be obstructed in a lawful life. When Mandela realized that not only his freedom was curtailed, but the freedom of everyone who looked like him was also curtailed. That's when he joined the African national Congress and that is when the hunger for his own freedom became the greater hunger for the freedom of his people.

Direction: The order of a system is defined as being the highest power of derivative in the differential equation, or being the highest power of s in the denominator of the transfer function. A first-order system only has s to the power one in the denominator. while a second-order system has the highest power of s in the denominator being two. Many system are approximately first-order. The important feature is that the storage of mass, momentum and energy can be captured by one parameter. Examples of first-order systems are velocity of a car on the road, control of the velocity of a rotating system, electric systems where energy storage is essentially in one capacitor or one inductor, in compressible fluid flow in a pipe, level control of a tank, pressure control in a gas tank, temperature in a body with essentially uniform temperature distribution (e.g., steam filled vessel).

Direction: Read the following passage carefully and answer the questions. Your answer to these questions should be based on passage only.
If you are worried by the radiation emitted by cell phone towers around you, there is some good news. From September 1, this year, India will lower the level to one tenth of the prevailing standard from 9.2 w/m² to 0.92 w/m2. The decision follows a report of the inter-ministerial committee formed by the Ministry of communications and Information Technology to study the hazards posed by e.m.f radiation from base stations and mobile phones. Sharma said lowering of the limit is a preventive step against serious health risks posed by radiation emitted from towers which includes the possibility of developing certain types of cancer. The cause and effect relationship though hasn't been established yet. The department of telecommunications has also issued directions for reducing the specific absorption rate, a measure of the amount of radio frequency energy absorbed by the body while using a phone