Torque

 TorquePhoto by Glenn Hansen on UnsplashIntroduction : We have seen small children playing top (bhawra) which rotates for some time when given a force. Similarly any rotational motion is associated with some force called as torque. Any object performing rotational motion...

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Impulse

 ImpulseIntroduction : When an object is in motion it is having momentum which is given by product of mass and velocity. The momentum specifies the amount of force actually require to bring a body at rest. If the body is moving with large velocity it has large...

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Electrostatics XI

 Electrostatics XICharges at RestCharges : Every object in the universe is made up of small unit called as atom. Every atom consist of two type of charges viz. (Negatively charged electrons and positively charged Proton) as shown in fig above. This charges has different...

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Inertial and Non inertial frame of reference

 Inertial and Non-inertial frame of referencePhoto by Sawyer Bengtson on UnsplashIntroduction : Inertial and Non inertial frame of reference is well understood by understanding state of motion and rest. In our day to day life we come across many experiences of accelerated...

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Kirchoff's Law of Heat radiation

 Kirchhoff's Law of Heat radiationIntroduction : Kirchhoff studied the behaviour of heat radiation and based on that result obtained from emissive power and absorptive power he made a understanding that radiation depends on wavelength specific radiative emission and...

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Wien's Displacement Law

 Wien's Displacement LawIntroduction: From the black body spectrum, it is clear that as the temperature goes on increasing, the wavelength corresponding to maximum emissive power goes on decreasing. The graph of wavelength and emissive power shifts toward left. Thus the...

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Heat Radiation

Absorption,Reflection and Transmission of heatIntroduction : When heat radiation is incident on a body, some part of heat radiation is reflected, transmitted and absorbed by the body. This amount of heat absorbed,t ransmitted and reflected depends on the coefficient of absorption, Transmission and reflection of heat from a body. Coefficient of...

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Radiation Spectrum

Black body spectrumTry this experiment given below and learn how spectrum of heat radiation behavesPlease wait loading.....The study of black body radiation in terms of wavelength  was carried out by Lummer and pringsheim maintaining the black body at different temperature....

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Specific heat of a gas

 Specific heat of a gasIntroduction: It is very clear from previous topic that equal amount of energy is distributed among each degree of freedom according to equipartition of energy. We can make use of equipartition principle to calculate specific heat of a gas with the help of mayer's equation. This would give us a mathematical approach for...

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Ferry,s Black Body

 Perfectly black bodyIntroduction : As we already studied that total heat energy incident on a body is sum of radiation absorbed by the body, radiation reflected by the body and radiation transmitted by the body. Thus accordingly we arrive a equation Q= Qa + Qr =Qt ....

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Specific Heat Capacity

 Specific Heat CapacityPhoto by Quino Al on UnsplashIntroduction : We come across many phenomenon of heat in our day to day life.I t is our day to day observation that when we keep two different vessel, let say  A and B of copper and  aluminium of same mass...

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Conservation of linear momentum

 Conservation of Linear MomentumLets have fun doing this experiment by our own.Loading please wait....Introduction : Newton's first law and second law holds good with respect to law of conservation of linear momentum. As we know that linear momentum P is the product of...

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Degree of freedom

 Degree of FreedomIntroduction: We know that every molecule can move in space in three dimension i.e x , y , z axis. This coordinates are enough to specify it's location in a space. If a molecule is restricted to move in a plane then two coordinates are enough to specify...

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Gravitation

Kepler's Planetary Law of motionIntroduction: A german astronomer, Johannes kepler studied about planetary motion and formulated very interesting and informative behaviour of motion of a planet.Let us see some interesting experiment and understand about planetary behaviour.Perform...

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