Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

So many phenomena, we experience in everyday life are such that they have no material existence. Gravity is one such phenomenon, which is a well-defined, mathematically formulated phenomenon, but ...

Through a recent notice, the Undergraduate Medical Education Board (UGMEB) of the National Medical Commission (NMC) has ...

Discover the bizarre story of a Cadillac Escalade whose headlights mysteriously turned on at night — all caused by electromagnetic interference from a nearby power line. Modern car tech meets ...

Scientists have developed a new approach to correcting common quantum computing errors, which could pave the way for more reliable systems. A stable "exceptional fermionic superfluid," a new quantum ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

Optical physics is the study of the fundamental properties of light and its interaction with matter. This includes classical optical phenomena such as reflection, refraction, diffraction and ...

The Knox County school board will ask Tennessee legislators to stop a bill that could block public education for undocumented immigrants. The legislature in 2026 could once again take up a bill ...

Altermagnets are a newly recognized class of antiferromagnets whose magnetic structure behaves very differently from what is found in conventional systems. In conventional antiferromagnets, the ...

Abstract: Unlike the stator permanent magnet flux-switching (SPMFS) motor, the sinusoidal degree of the no-load back electromotive force (back EMF) in the rotor permanent magnet flux-switching (RPMFS) ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced financial consultant. She has a demonstrated ...

Abstract: The occurrence of partial demagnetization fault (pdf) in permanent magnet synchronous motors (PMSMs) can significantly degrade the ability of the output torque and may even lead to vibration ...