Month: August 2018

Semi conductor

What is semi conductor in physics?

 Semi Conductors These are the material with resistivity between conductors and insulators. That is they are neither conductor nor insulator, therefore they are called Semi conductor. Examples, germanium has resistivity of 0.6×103Ω-m and silicon has resistivity of 1.5×103Ω–m Semi conductors are grouping IV, elements, with four electrons in their outmost shell. The valence electrons of …

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Fundamentals of Physics

Fundamentals of Physics questions and answers

Fundamentals of Physics questions and answers 1-10 Why is it that when you match a rug in your room you feel worn but when you match on the floor which is in the same room temperature with the rug you feel cold? Answer: It is because the cement floor is a good conductor of heat, …

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Projectile motion

Projectile motion in physics, what is it?

What is Projectile motion in physics   Projectile is an object thrown into air or launched in space to move freely by itself under the influence of gravity and air resistance. In projectile  motion we have time of Flight, time to reach maximum height, Maximum height and Range, all these are the parameters we take …

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quasar

Quasar-quasi stellar object facts (brightest object )

What is Quasar Quasar also known as QSO Quasi-Stellar object is   an extremely luminous active galactic nucleus Quasars are the furthest object from galaxy that can be seen Quasars are the brightest object in the universe Quasars are  believed to be a supermassive black hole rounded by an accretion disk. Quasar is about two billion …

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black hole facts

black hole facts you may not know (over 30)

These are the the black hole facts you may not know 1. Black hole is a place in space where gravity pull so much that it can trap light 2. In black hole matter are being squeezed in tiny space hence the strong gravity 3. Nobody can see black hole because no light can get …

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