Answers to Brain Teasers- Increase your IQ Day by Day

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ANSWERS TO BRAIN TEASERS Try to solve these Optical Illusions, Puzzles, and Brain teasers to increase your IQ level. It will help you to solve the Quizzes for any Competitive Exams. Prof. Masood Sadiq Answer: 1 Eight total holes in the vest. Answer: 2 Only 3 can reverse to clear traffic.  Answer: 3 The word 'SPOT' is written twice in the pic Answer: 4 Look at the open holes toward F  Answer: 5 Look at the upper of the pond.  Answer: 6 Look at the left arm of the woman under the curtain. Answer: 7 Look at the back side of the elephant just over the bushes. Answer: 8 Look at the leaves just at the bottom of the picture.  Click here to watch more Logical Reasoning based questions Answer: 9 Look at the shadow of a palm tree and shadowless camels.  Answer: 10 Look at the picture closely.  Answer: 11 Three matchsticks are just behind the lighter and five are in reflections, so there are Eight matchsticks in total.  Click here to see a Unique River in the world in New Zealand Answe
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Does light have mass? If ight has no mass why it is affected by gravity?

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Does light have its mass? If it doesn't have any mass why it is affected by gravity? 

This is an exciting and wonderful question.

Let's clarify a couple of things first with an explanation given by a professor of Physics.


It is a fact that light bends by the effect of gravity; That is a fact.

Light has no mass; thanks to this it can travel at the speed at which it does. E=mc^2

If light travels in a straight line, so why does it curve?


All right. Isaac Newton, first, suggested that the gravitational attraction between two bodies was proportional to the product of the masses and inversely proportional to the square of the distance between them.

Or, simply put; dough attracts dough. Newton gave us the formula to calculate this attraction, and we thank him to this day for it.

However, much later, in the year 1915, a great physicist postulated the "Theory of General Relativity". He was Albert Einstein. He suggested that gravity is not an attractive force between two bodies, but rather the deformation of a tissue that he called spacetime.


I'll explain it to you with the classic example: If you have a mesh, and you place a marble in it, the mesh will curve, causing anybody in it to move towards the marble you placed in the first place. Thus, the Sun, for example, warps space-time causing the trajectories of everything around it (such as the Earth) to be affected.


However, light travels in a straight line ... right? The answer is "Yes". It does. But the space-time in which it travels is curved (exerting gravity). Thus, it seems that light is bent by the effect of this gravity. Or rather, it does; It curves! It is not a matter of perspectives, it is a fact. But in reality, it is travelling in a straight line through the continuous fabric of space-time, which, by the presence of energy (mass of another body) bends.


Visit Quora.com and read many interesting questions like this to increase your knowledge with the help of your worthy teachers.

Click here to attempt an MDCAT Prep Test

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