Units and Measurement
In physics and metrology, units are standards for measurement of physical quantities which facilitates the reproducibility of experimental results. Scientific systems of units were developed from weights and measures used…
In physics and metrology, units are standards for measurement of physical quantities which facilitates the reproducibility of experimental results. Scientific systems of units were developed from weights and measures used…
According to Stefan, we can order events in time and there is a sense of time, distinguishing past, present and future. Is, therefore, time a vector? Similarly current has magnitude…
Edwin was observing a yellow candle flame, his partner Harry claims that the light from the flame originates from excited sodium atoms in the flame. Edwin disagrees with Harry. According…
James science teacher told him that space is full of vacuum. He asked his teacher than how light rays travel so long distances from stars and reach earth’s surface. Does…
Kinetic theory of gases Question: David told John that molecular speeds are comparable with his rifle bullet. John asked David if molecular speed comparable with rifle bullet speed then why…
Moving Charges and Magnetism: James Bond fire an electron gun in east direction to hit his target in the north direction. How could it be possible? Can you explain?
Nuclei Sam is interested to know two things about nucleus.1. Why is a neutron stable inside the nucleus but decay in 900 sec in free space? 2. It would be…
Magnetism and Matter Peter is doing some experiment on a bar magnet. He heated the bar magnet to 1000 degree centigrade and then cooled in a magnetic field-free space. He…
In 1887, Hertz conducted an experiment. It was showing that when a light beam falls on a metal surface, there was some kind of electrical reaction. But he did not…
Particle in a Box We are going to discuss a single particle in a box classical as well as quantum. Classically: Particle confined in a box and walls of the box…