कणों के निकाय तथा घूर्णी गति Class 11 Physics Chapter 6 | कोणीय संवेग - Angular Momentum | Lec - 3

कोणीय संवेग (Angular Momentum)|कोणीय संवेग का सदिश रूप (Vector form of Angular Momentum)|कोणीय संवेग और बल आघूर्ण में संबंध (Relation Between Angular Momentum and Torque)|कोणीय संवेग का ज्यामितीय अर्थ (Geometrical Meaning of Angular Momentum)|जड़त्व आघूर्ण (Moment of Inertia)|किसी पिंड के जड़त्व आघूर्ण के लिए व्यंजक (Expression for M.I. of a Body)|जड़त्व आघूर्ण का भौतिक महत्व (Physical Significance of Moment of Inertia)|घूर्णन त्रिज्या या परिभ्रमण त्रिज्या (Radius of Gyration) |घूर्णन गतिज ऊर्जा (Rotational Kinetic Energy)|OMR

Class 11 NEET 2020 - Revision In 60 Days | Rigid Body Dynamics Part -4 (Angular Momentum) - Quick Revision | NEET Physics | Important Questions

A single electron orbits a stationary nucleus of charge + Ze , where Z is a constant and e is the magnitude of electronic charge . It requires 47.2 eV to excite . Find a the value of Z b the energy required to excite the electron from the third to the fourth Bohr orbit. the wavelength of electromagnetic rediation required to remove the electron from the first Bohr orbit to infinity. d Find the KE,PE , and angular momentum of electron in the first Bohr orbit. the redius of the first Bohr orbit [The ionization energy of hydrogen atom = 13.6 eV Bohr radius = 5.3 xx 10^(_11) m , "velocity of light" = 3 xx 10^(-8)jm s ^(-1) , Planck's constant = 6.6 xx 10^(-34)j - s]

A single electron orbikt around a stationary nucleus of charge + Ze when Z is a constant and e is the magnitube of the electronic charge if 47.2 eV excite the electron from the second bohr orbit to the third bohhr orbit final (i) The volue of Z (ii) Tyhe energy requiredto nucleus the electron from the third to the fourth bohr orbit (iii) The wavelength of the electronmagnetic radiation required to remove the electron from the first bohr orbit to inlinity (iv) The energy potential energy potential energy and the angular momentum of the electron in the first bohr orbit (v) The radius of the first bohr orbit (The ionization energy of hydrogen atom = 13.6 eV bohr radius = 5.3 xx 10^(-11) matre velocity of light = 3 xx 10^(8) m//sec planks 's constant = 6.6 xx 10^(-34) jules - sec )

An electron in an atom is revolving round the nucleus in a circular orbit of radius 5.3xx10^(-11) m, with a speed of 2xx10^(6)ms^(-1) . Find resultant orbital magnetic moment and angular momentum of electron. (e = 1.6 xx 10^(-19) C , m = 9.1 xx 10 kg )

The length, breadth and height of a cuboid is 15 cm, 12 cm and 11 cm respectively. Length is reduced by 6 2/3% and breadth is increased by 8 1/3% while the height remains the same. What is the change in the total area of four side faces of the cuboid ? ( considering the rectangle formed by the length and breadth as base) किसी घनाभ की लम्बाई, चौड़ाई और ऊंचाई क्रमशः 15 cm, 12 cm तथा 11 cm है | लम्बाई को 6 2/3% घटा दिया जाता है और चौड़ाई 8 1/3% को बढ़ा दिया जाता है जबकि ऊंचाई को अपरिवर्तित रखा जाता है | घनाभ के (लम्बाई और चौड़ाई से बने आयत को आधार मानते हुए) चार पार्श्व-फलकों के कुल क्षेत्रफल में कितना परिवर्तन है?

What is ratio of mean proportional between 3.6 and 12.1 and third proportional between 2 and 11? 3.6 और 12.1 के बीच माध्य समानुपाती तथा 2 और 11 के बीच तीसरे आनुपातिक में क्या अनुपात है ?