The question asks to identify the author of the significant book titled "Public Opinion". This influential work delves into the formation of public opinion and the role of media in shaping societal perceptions.
"Public Opinion" is a landmark book published in 1922. It critically examines how individuals form opinions about events and issues beyond their direct experience. The book explores the concept of stereotypes and the influence of the press in creating a 'pseudo-environment' for citizens.
The author widely recognized for this seminal work is Walter Lippmann. Lippmann was a prominent American intellectual, a two-time Pulitzer Prize winner, and a key figure in journalism and political commentary during the 20th century. His analysis of public opinion, propaganda, and the press profoundly impacted fields like political science, sociology, and media studies.
Therefore, Walter Lippmann is the author of the book, "Public Opinion".
A stone is thrown horizontally from the top of a 20 m high building with a speed of 12 m/s. It hits the ground at a distance R from the building. Taking g = 10 m/s2 and neglecting air resistance will give :
A sphere of volume V is made of a material with lower density than water. While on Earth, it floats on water with its volume f1V (f1 < 1) submerged. On the other hand, on a spaceship accelerating with acceleration a < g (g is the acceleration due to gravity on Earth) in outer space, its submerged volume in water is f2V. Then:
A railway wagon (open at the top) of mass M1 is moving with speed v1 along a straight track. As a result of rain, after some time it gets partially filled with water so that the mass of the wagon becomes M2 and speed becomes v2. Taking the rain to be falling vertically and the water stationery inside the wagon, the relation between the two speeds v1 and v2 is :
Consider the following statements:
1. Distance between the longitudes becomes zero on North Pole and South Pole.
2. Distance between the longitudes is maximum on the Equator.
3. Number of longitudes is more than number of latitudes.
Which of the statements given above is/are correct?
One block of 2⋅0 kg mass is placed on top of another block of 3⋅0 kg mass. The coefficient of static friction between the two blocks is 0⋅2. The bottom block is pulled with a horizontal force F such that both the blocks move together without slipping. Taking acceleration due to gravity as 10 m/s2, the maximum value of the frictional force is :