Category: Physics Faqs

When matter and light exhibits properties of both waves and particles, it is referred as Wave-Particle duality.  For instance, Light can behave like wave when it shines through narrow slits while, when exposed to some metal surface it will spray electrons acting as a particle. So under different conditions it will act.

Dyne is a unit of force or also referred as C-G-S (centimetre – gram –-second).  It means that when a force is applied to mass of 1 gram, it gives acceleration of 1 centimetre per second.

Nephelometer is the instrument used to measure the scattering of light by particles suspended in a liquid

Ohm is the unit to measure the heat resistance.

To measure the distance to nearby stars, astronomers use an effect called Parallax.  Parallax is the apparent displacement of an object because of a change in observer’s point of view, for instance, when we look at object with one eye shut and then doing the same with other eye, there is a difference in the…

The property of the material that relates to its ability to conduct heat is referred as Thermal Conductivity.

After Solid, liquid and gas there is one more matter that exists known as Plasma.  Properties of Plasma are

In the space, light travels at a speed of 186,282 miles per second and sunlight takes about 8 min and 19 sec to reach the surface of the earth.

Shearing stress is the ratio of the tangential force F to the area of the face BCGH over which it is applied.  The ratio shearing stress is divided by shearing strain is the shear module or co-efficient of rigidity, n Shearing stress     =   const Shearing strain

Quantum entanglement is one of the central principle of quantum physics, which means multiple particles are linked together in a way that the measurement of one particle quantum state determines the possible quantum of the other particles