Punjab GK – Punjab census 2011 Data

Punjab Census 2011 Important Data   Total population according to 2011 census- 2.77 Crore What is percentage of rural to total population – 62.51% What is percentage of Urban to total population- 37.49% Population density of Punjab- 550 persons/Square km What is sex ratio of Punjab – 895 What is literacy rate of Punjab- 7% […]

History Technology Trending Who Invented What

Who Invented Camera?

Cameras evolved from the camera obscura, and continued to change through many generations of photographic technology, including daguerreotypes, calotypes, dry plates, film, and to the modern day with digital cameras. Camera obscura is the natural optical phenomenon that occurs when an image of a scene at the other side of a screen is projected through […]