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कुछ सवाल

सामाजिक स्थिति को लेकर कुछ जरुरी सवालों के लिए क्लिक करें।

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लघु कहानियां

लेखक द्वारा सामाजिक तानेबाने पर लिखित कुछ कहानियों के लिए क्लिक करें।

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भौतिकी (Physics in Hindi)

हिन्दी में भौतिकी की समझ को बेहतर करने के लिए क्लिक करें।

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Recent Articles

A Carnot engine has an efficiency of 50% when its source is at a temperature 327°C. The temperature of the sink is ? NEET UG2023

ANS-    T2= 27 degree centigrade or 300K

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A bullet is fired from a gun at the speed of 280 m s^–1 in the direction 30° above the horizontal. The maximum height attained by the bullet is ? (g = 9.8 m s^–2) NEET UG2023

Put values in above formula and get the result 1000 meter

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एक रास्ता ऐसा भी

लोग जन्म लेते हैं और तरह तरह के रास्ते अपनाते हैं सुख-दुख, आराम - तकलीफ से होते हुए आगे बढ़ते हैं, उनमें से कुछ लोग रास्ता चुनते हैं लोगों को जागरूक करने का, ऐसे लोगों के जीवन में भी आते हैं, सुख-दुख, आराम - तकलीफ लेकिन वो आगे बढ़ते रहते हैं क्योंकि ये एक बहुत जरूरी काम है, हर युग में जरूरी |

ताकि समाज में समता आये, लोगों को गरिमामय जीवन मिले और वो अपने अधिकार को लेकर जागरूक और सचेत रहने के साथ दूसरों की तकलीफों और जरूरतों को लेकर संवेदनशील रहें  और इस तरह निर्माण हो सके एक खूबसूरत और शुकून भरे समाज का |

 

 

- लवकुश कुमार 

 

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Improving performance in numericals : Physics for NEET NTA JEE CUET CBSE

To approach a question either write the formula of desired quantity and then put the values directly or indirectly from given values in question

                                                                                                                          or

 write the main equation of that *topic* so that you can know which quantities can be deduced from the *given* values and *main equation* 


For example in questions of photo electric effect you can always *start* the question by writing *main equation* and then putting given values and checking what you can find by putting those values.   K.E  = E - W ;

energy, E can be replaced by expression in terms of freuency / wavelength

work function, W can be replaced by expression in terms of threshould frequency /  threshould wavelength

Maximum kinetic energy K.E. can be replaced by expression in terms of velocity or stopping potential.


Basic understanding like -

to cross a pole, a train need to travel a distance equal to it's length... Because pole is said to be crossed only when the guard's wagon(last wagon) crosses the pole.


I don't fear the man who practiced 1000 punch. 

I fear the man who practice one punch 1000 *times* - Bruce Lee


Practice each questions 2-3 times until you become used to or comfortable with the analytical process involved in it.

Best Wishes

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Some points important for ray optics- First part: NEET NTA CUET

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Some points important for ray optics- Second part: NEET NTA CUET

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Some points related to wave optics, important for NEET NTA JEE CUET CBSE

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Questions for practice- Newtons Laws of Motion (NLM). Basics

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Practice for rotational and translational kinetic energy. CBSE NEET JEE NTA

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Capacitors and comparison of energy stored in it. CBSE NEET JEE NTA

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