Forces and nature,

Determine the mass number of the element, Determine the mass number of the ...

Determine the mass number of the element? A mass of 25.2 g of an element is known to contain 6.77x 10 23 atoms. What is the mass number of the element? I thought it would be

Time dilation (relativity of time), Time dilation (relativity of time) is ...

Time dilation (relativity of time) is the proper time interval is dilated when it is measured by an observer with reference to whom it has uniform velocity v  This is known as

Explain earth’s magnetic field , As per the most established theory it is b...

As per the most established theory it is because of the rotation of the earth where by the several charged ions there in the molten state in the core of the earth rotate and consti

Explain forward bias and reverse bias, Explain briefly, with the help of ci...

Explain briefly, with the help of circuit diagram, how V - I characteristics of a p-n junction diode are obtained ii (i) forward bias, and (ii) reverse bias. Illustrate th

Find the de broglie wavelength, Q. An electron beam is accelerated through ...

Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength. λ = 12.27 A o / √V λ = 12.27 A o / √10 4    = 0.1227

Terrestrial telescope and astronomical telescope, Distinguish between a ter...

Distinguish between a terrestrial telescope and an astronomical telescope. Explain Rams dens' eye piece with the help of a neat diagram. Illustrate its advantages and disadvantages

What is excitation potential energy of an atom, Q. What is excitation poten...

Q. What is excitation potential energy of an atom? The energy required to increase an atom from its normal state into an excited state is called excitation potential energy of

Illustrate examples of systems in equilibrium, Examples of systems in equi...

Examples of systems in equilibrium: a) a stone resting on the ground; b) a pencil balanced on your finger; c) a ladder placed against the wall, an aircraft flying at a co

What is the composition of nucleus, Q. Carbon-14, or 14 C, is an isotope o...

Q. Carbon-14, or 14 C, is an isotope of the common 12 6 C, and is used in dating ancient artifacts. What is the composition of its nucleus?   Six protons (equal to Z) an