This blog is for learning physics in the simplest way possible. Here, we'll get every concept of physics explained.
NEET and JEE Physics Previous Year Questions will also be there with solutions.
Standard Kilogram Metal
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Standard Kilogram Metal
The international standard kilogramis the metal object carefully enclosed within these nested glass containers.
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 ...
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 .
Qu. How many Balmer series lines are in the visible part of the spectrum? Answer: The Balmer series or Balmer Lines are one of the sets of six named series which describe the spectral line emission of the hydrogen atom. The Balmer series is characterized by the electron making the transition from n ≥ 3 t o n = 2 . Where n is principal quantum number of the electron. The visible spectrum of light from hydrogen displays 4 wavelengths, 410 nm, 434 nm, 486 nm, and 656 nm. These wavelengths are corresponding to the emission of photons by electrons in excited making the transition to the quantum level having principal quantum number n=2. Therefore, 4 Balmer series lines are in the visible part of the spectrum.
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