CBSE Class 12 Physics Theory Question Paper 2016 N Set 01

CBSE Class 12 Physics Theory Question Paper 2016 Set 1 N.The Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

                                                                                  Physics Theory

SECTION - A                  

1.What is the amount of work done in moving a point charge   around a circular arc  of radius 'r'  at the centre  of which  another  point charge 'q'  is located ?

2.Define  mobility  of a charge  carrier. What is its  relation  with  relaxation time ?

3.What can be the cause of helical motion of a charged particle ?

4.Why can't  we see  clearly  through  fog ? Name the phenomenon responsiblefor it.   

5.A signal  of 5 kHz frequency  is amplitude  modulated  on a carrier  wave of frequency 2 Mkhz.  

What are the frequencies of the side bands produced ?

SECTION - B                                                

6.When  5v potential difference is applied across a wire of length 0.1 m, the drift speed of electrons 

is  2.5x10^-4 m/s. If the electron density in the wire is 8x10²⁸ m^-3, calculate the resistivity of the material of wire.

7.A proton and an    particle are accelerated through the same potential difference.  Which one of  the two has (i) greater de-Broglie wavelength, and (ii) less kinetic energy  ?  Justify your answer.

8. When is   a  line  in  the  emission  spectrum  of hydrogen  atom  obtained ? Calculate the  frequency of the photon emitted during this transition.

                                                         OR

Calculate the wavelength of radiation emitted when electron in a hydrogen atom jumps from n==r:J to n==1.

Please click below link CBSE Class 12 Physics Theory Question Paper 2016 Set 1 N