Basics of Physics

The definition of the tropical year   The tropical year is defined as the time interval between two successive passages of the earth through the vernal equinox, which takes place approximately on March 21st  each year. It may also be defined as 1/86,400 of the mean solar day, which is the time interval between two successive passages of a point on the earth in front of the sun average over one year. But this definition has the drawback that, because of tidal action the period of earth's rotation is decreasing gradually, and therefore this unit should also be changing gradually.

  The standard meter and the standard kilogram This is a bar of platinum-iridium alloy of X-shaped cross-section called standard meter and this is the International Standard of Length .  The other thing is a cylinder of platinum-iridium called the standard kilogram and this is the International Standard of Mass .

The Oak Ridge National Laboratory (ORNL) This is the Oak Ridge National Laboratory research nuclear reactor, Which is being used in a great variety of fundamental research.  

Great Nebula in Andromeda This is Great Nebula in Andromeda, also called M - 31. The nearest of the large regular Galaxies, It is about 2.5 Million light-years or 2.5 * 10^22 m  from the solar system. Its diameter is about 1.25 Million light years and It contains more than 10^11 stars.  

NEET Physics 2019 Solved Question- 3  (Physical world and Measurements) The End

NEET Physics 2019 Solved Question (Physical world and Measurements - 2) The End

NEET Physics 2019 Solved Question - 1  (Physical world and Measurements) The end

NEET Physics Syllabus and Topic Wise Weightage What is the Syllabus of NEET Physics and Which are Important Topics? The following are the Topics with their Weightage.   No. Name of the Topics Weightage 1. Physical World and Measurement   2% Ø   Physical World Ø   Units and Measurements 2. Kinematics 3% Ø   Motion in a Straight Line Ø   Motion in a Plane 3. Laws of Motion 3% Ø   Laws of Motion 4. Work, Energy, and Power 4% Ø   Work, Energy, and Power 5. Rigid Body Dynamics 5% Ø   Motion of System of Particles and Rigid Body Ø   System of Particles and Rotational Motion 6. Gravitation 2% Ø   Gravitation 7. Properties of Bu