CBSE 12th Physics

Last 5 year solutions (2011 - 2015)

Prepare for CBSE class 12 Physics board paper with the help of previous years (2011-2015) solved question papers.
3 video solutions

CBSE Board Papers Class 12 - 2014 - Physics - Question 20
by added on Mon Feb 16 07:31:33 UTC 2015 449 views
Question - An electron microscope uses electrons accelerated by a voltage of 50 kV. Determine the de-Broglie wavelength associated with the electrons. Taking other factors, such as numerical aperture etc. to be same, how does the resolving power of an electron microscope compare with that of an optical microscope which uses yellow light? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Physics - Question 13 a
by added on Mon Feb 16 07:51:19 UTC 2015 141 views
Question - Using Rutherford model of the atom, derive the expression for the total energy of the electron in hydrogen atom. What is the significance of total negative energy possessed by the electron? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Physics - Question 2
by added on Mon Feb 16 07:49:38 UTC 2015 107 views
Question - The graph shows variation of stopping potential V0 versus frequency of incident radiation ν for two photosensitive metals A and B. Which of the two metals has higher threshold frequency and why? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 
Any Queries? Don't hesitate to call us @
Oops!
Message
Any Queries? Don't hesitate to call us @