GRAVITATIONAL LENSING explained ( part 2 )
GRAVITATIONAL LENSING : In the prvious post GRAVITATIONAL LENSING explained ( part 1 ) we learnt about gravitational lensing by defining the basic terms like gravity and lenses. Now in this post we are going to learn about TYPES OF GRAVITATIONAL LENSING. Types of gravitational lensing : ⇒ There are mainly 3 types of lensing 1) Strong lensing. 2) Weak lensing. 3) Micro lensing. STRONG LENSING : Here gravitational force is strong because the distance between light source and galaxy cluster is less. Due to this gravity is strong and results in formation of multiple images of same star . " Einstein cross " is one of the example for it , w...
