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Heat | Heat Energy Heat | Heat Energy :- Heat is a form of energy that is being transferred from one body to another or between adjacent parts of a body as a result of temperature difference. When a body is heated, its temperature increases and molecules begin to move with greater kinetic energy….
ऊष्मा | ऊष्मा किसे कहते हैं ऊष्मा | ऊष्मा किसे कहते हैं :- ऊष्मा ऊर्जा का एक रूप है जो तापांतर के परिणामस्वरूप एक वस्तु से दूसरी वस्तु में या एक ही वस्तु के एक भाग से दुसरे भाग तक स्थानांतरित होती है। जब किसी पिंड को गर्म किया जाता है, तो उसका तापमान…
Free Body Diagram Free Body Diagram(F.B.D.) :- In a system when several bodies are connected by strings, springs, surfaces of contact, then all the forces acting on the body are sketched by isolating the body from its surroundings. This diagram is called free body diagram. In order to draw F.B.D., the following points are…
Nuclear Stability Nuclear Stability :- Atomic nucleus is a densely packed collection of protons and neutrons. The very large electrostatic repulsive forces between protons should cause the nucleus to fly apart but nucleons are able to stay together because of strong Nuclear Force. There are 118 different elements. All these elements have isotopes and as…
Nuclear Forces | Nuclear Forces Definition Nuclear Forces | Nuclear Forces Definition :- In previous article Binding Energy Per Nucleon we have seen that for average mass nuclei the binding energy per nucleon is approximately 8 MeV, which is very large. Therefore, a question came to the minds of scientists that what force holds…
During an experiment with a meter bridge Question :- During an experiment with a meter bridge, the galvanometer shows a null point when the jockey is pressed at 40.0 cm using a standard resistance of 90Ω. The least count of the scale used in the meter bridge is 1mm. The unknown resistance is – (1)…
The mass M shown in the figure oscillates in SHM with amplitude A Question:- The mass M shown in the figure oscillates in simple harmonic motion with amplitude A. The amplitude of the point P is Solution :- As the springs are connected in series, so restoring force is same Amplitude A is given by, Now the amplitude of…
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A uniform rod of length L and mass M is pivoted at the centre Question :- A uniform rod of length L and mass M is pivoted at the centre. Its two ends are attached to two springs of equal spring constants k. The springs are fixed to rigid supports as shown in the…
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Binding Energy Per Nucleon | Binding Energy Curve Binding Energy Per Nucleon | Binding Energy Curve :- The stability of a nucleus is not measured by it’s binding energy, but it is measured by “binding energy per nucleon”. If B.E./nucleon of a nucleus is less, the nucleus is less stable whereas the nucleus is…
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विकिरण दाब | विकिरण दाब का सूत्र क्या है? विकिरण दाब :- मैक्सवेल के अनुसार एक विद्युत चुम्बकीय तरंग संवेग () एवं उर्जा () का वहन करती है और जब यह विद्युत चुम्बकीय तरंग किसी वस्तु द्वारा अवशोषित/परावर्तित होती है, तो यह वस्तु सतह के लंबवत दिशा में एक बल का अनुभव करेगी। मैक्सवेल…