Excitation energy and potential, When the electron is known energy from ext...

When the electron is known energy from external source, it goes to higher energy level. This process is called as excitation. The minimum energy needed to excite an atom is know

Couple, state the conditions under which two forces form a couple and give ...

state the conditions under which two forces form a couple and give an example of couple

Compound microscope, What is the principle and ray diagram of a compound mi...

What is the principle and ray diagram of a compound microscope

Determine the actual distance from first face, A small air bubble is inside...

A small air bubble is inside a cube of 0.21 m. When viewed from one face it seems to be at a depth of 0.06 m, when viewed from opposite face the bubble seems to be at a depth of 0.

Define the temperature coefficient of resistance, Q. Define: the temperatur...

Q. Define: the temperature coefficient of resistance. The ratio of raise in resistance per degree rise in temperature to its resistance at 0 o C is called as temperature coeff

What is parallel-plate capacitor, What is Parallel-Plate Capacitor Para...

What is Parallel-Plate Capacitor Parallel-Plate Capacitor:  Device used to keep electrical potential energy and charge.  It having of two conducting sheets with equal and oppos

Fresenls diffraction, working and construction of fabry perot interferomete...

working and construction of fabry perot interferometer

Polarisation, describe the construction and working of a Nicol prism.discus...

describe the construction and working of a Nicol prism.discuss how you obtain a plane polarised beam with it?

How fast is each particle moving, Two particles each have a mass of 6.7 x10...

Two particles each have a mass of 6.7 x10 -5 kg. One has a charge of +5.0 x 10 -6 C, and the other has a charge of -5.0 x 10 -6 C. They are initially held at rest at a distance of

Forces and nature,