This article will help students get the sample paper for CBSE class 12th Physics board exam which is scheduled for 20th February 2026. The sample paper includes important questions and solutions which ...

Survival of the fittest. Nature red in tooth and claw. The common view of natural selection is based solely on the individual: A trait allows an organism to out-compete its rivals and is thus passed ...

Distribution transformers must adhere to NEC and NFPA 70 standards, with specific requirements for overcurrent protection, ...

Abstract: Linear frequency-modulated (LFM) and hyperbolic frequency-modulated (HFM) signals are employed in many areas, especially in the echolocating systems. To solve the problem of signal detection ...