Question: The splash is heard after 4.22 sec after the stone is dropped in to a well of depth 78.4 m.Find the velocity of the sound. Solution: Introduction: The study of speed of sound is crucial for scientific and engineering disciplines in meteorology,it helps in understanding atmospheric conditions and predicting weather patterns.By delving into the principles governing the speed of sound,…

EMF AND POTENTIAL DIFFERENCEDIFFERENCESElectromotive force (Emf) MEASURING THE EMF OF A CELL – IMAGEPotential differenceEMF AND POTENTIAL DIFFERENCE – IMAGERESISTANCE AND FACTORS AFFECTING THE RESISTANCE OF A CONDUCTORRESISTANCEREASON FOR RESISTANCEFACTORS AFFECTING THE RESISTANCE OF A CONDUCTORLENGTHAREA OF CROSS SECTION (A)NATURE OF THE MATERIAL WHEN THE TEMPERATURE IS INCREASEDRESISTANCE AND…

Dual nature of matter and radiation class12 Physics

How to calculate mass defect?

MASS DEFECT: The total mass of a nucleus is less than the total mass of the nucleons that make up the nucleus. This is known as a mass defect. The mass defect or mass difference is given by HOW TO CALCULATE MASS DEFECT? CONCLUSION: According to Einstein’s relationship the binding energy is proportional to the mass difference or mass defect. Mass defect plays an important role in the conversion…

Physics for ISC syllabus grade 12

Web-stories on cbse grade 12 physics

What is meant by photoelectric effect? Where is photoelectric effect used? The photoelectric effect involves, irradiating  a metal surface with photons of sufficiently high energy to eject the electrons  from the metal.The photoelectric effect occurs with photons having energies from a few  electronvolt to  over 1MeV.The photoelectric effect phenomena (convert light into electricity)  used to…