chemistry , biology , physics notes in hindi 11th , 12th class
find what is the rydberg constant value in metre , definition , formula class 12 , examples ? Rutherford’s a-particle Scattering Experiment A beam of fast a-particles was made to fall on a thin metal foil. Rutherford observed that most of the α-particles passed through the foil without any appreciable…
How to draw the voltage current characteristics of a pn junction diode in forward bias and reverse bias ? Current-Voltage Characteristics of a PN Junction Diode The current-voltage characteristic curve of a pn junction diode is a graph which shows the variation of the current flowing through the junction with…
all facts of Difference between forward bias and reverse bias Class 12 in a p-n junction in semiconductor ? Energy Bands in Solids (1) Conductors – In conductors, there is no forbidden energy band. The valence band and the conduction bands overlap. Hence electrons from the valence band can easily…
know sky and space wave propagation difference , definition , formula , example , compare ? Space Communication The transmission of information through space as communication channel is space communication. it means in Space Communication the communication channel is space works. means the information passes through space or we can…
here know Modulation Index definition , derivation , formula in communication system , Bandwidth in amplitude modulation ? Communication – The transfer of information from one point to another is called communication. in Communication process the information deliver from one point to another point. and this process of delivering information…
class 10 science question answer Identify the substances that are oxidised and the substances that are reduced in the following reactions ? (i) 4Na(s) + O2(g) → 2Na2O(s) (ii) CuO(s) + H2(g) → Cu(s) + H2O (l) solution : (i) 4Na(s) + O2(g) → 2Na2O(s) In this reaction sodium (Na)…
class 10 question answer Give an example of a double displacement reaction other than the one given in activity 1.10 (See in textbook). solution : first of all we have to understand definition of double displacement reaction as follows – Double displacement reaction : The reaction in which there is…
class 10 science answer of question Why does the colour of Copper sulphate solution change when an iron nail is dipped in it ? solution : as we know that Iron is more reactive than copper that is why Iron displaces copper from copper sulphate solution according to the following…
question : Why is the amount of gas collected in one of the test tubes in Activity. 1.7 double of the amount collected in the other ? Name this gas. class 10 science answer solution : as we have done activity 1.7 in which electrolysis of water reaction occurred which…
महिलाओं के शरीर में दूध कैसे बनता है , Lactation in hindi , दुग्ध स्रवण क्या है , दुग्ध जनक हार्मोन का स्राव कहां पर होता है ? प्रसव (Parturition ) गर्भाशय में युग्मनज के रोपण के उपरानत अपरा या प्लैसेन्टा (placenta ) नामक संरचना विकासशील भ्रुण व गर्भाशय की…
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