Madhya Pradesh Board (MPBSE) Previous Year Question Paper for Class 12 Physics 2015
Madhya Pradesh Board (MPBSE) Physics Previous Year Question Paper for Class 12
1. Write the Formula That Describes the Relationship Between the Focal Length and the Radius of Curvature of a Spherical Mirror.
We know that in a spherical mirror, the focal length f = Half of the radius of curvature (R) of the mirror.
So, the formula becomes f = R/2.
2. Can I Apply for the Change of MP Board 12th Exam Center?
No. MP board doesn’t provide a facility for changing the class 12th board exam center. However, in case of any difficulty, students can consult their school authority regarding the change in center.
3. What Will Be the Effect of Self-Inductance in a Solenoid If a Soft Iron Core Is Placed in It?
The following are the benefits of placing a soft iron (ferrous/iron) core inside the solenoid.
By placing a soft iron core, the magnetic field lines become concentrated.
The magnetic field strength increases.
The magnetic flux linkage between the coils (such as in a transformer) also improves due to the high magnetic permeability of the soft iron.