No items in cart
Significant figures are those digits that have meaning and are recognized to be assured of their value.They are used to show uncertainty in an experiment or a computed number. For example, if 18.2 mL is the result of a...
It is possible to express the balanced response of carbon combustion as follows: C+ O2 = C02Carbon dioxide is produced when one mole of carbon is burned in one mole of dioxygen (air) using the balancing equation.ii) 1...
It is not much spoken about the quantization of orbits of planets around the Sun since the angular momentum associated with planetary motion is largely relative to the value of constant h. The angular momentum of the E...
· When the electrons revolve round the nucleus, they are continuously accelerated towards the centre of the nucleus. According to Lorentz, an accelerated charged particle should radiate energy continuously. There...
On the basis of the results of α-scattering experiment, Rutherford suggested the following picture of the atom: · Atom may be regarded as a sphere of diameter 10–10 m but whole of the positive charge and almost...
It had to be discarded, because of the following reasons: It could not explain the origin of the spectral lines in the form of series as in case of hydrogen atom. It could not account for the scattering...
The positive charge is uniformly distributed over the entire sphere and the electrons are embedded in the sphere of positive charges just like seeds in a watermelon or plums in the pudding. For this reason, Thomson’s...
Modulation is the process of superimposing message signal on carrier wave. Need:· Prevent signal loss· Allow long-distance transmission · Reduce antenna size
· Travel at speed of light· Transverse in nature· Don’t require medium Uses:· Radio waves → communication · X-rays → medical imaging
· 1st Law: A changing magnetic flux induces an emf.· 2nd Law:Induced emf=−dϕ / dt Negative sign = Lenz's law (opposes the change).
Hi 👋
How can we help you?