CBSE Class 12 Physics for Blind Question Paper Solved 2019 Set A

CBSE Class 12 Physics for Blind Question Paper Solved 2019 Set A. Students can download the last year board exams 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.

SECTION A

1. Why is convex mirror used as a side view mirror in a car ?

OR

A lens of larger power bends the incident light more. Why ?

2. Where on the surface of the Earth, is the vertical component of Earth’s magnetic field zero ?

3. Why are electric field lines perpendicular at a point on an equipotential surface of a conductor ?

OR

Why are manganin and constantan widely used for making wire bound standard resistors ?

4. Write the expression for the de-Broglie wavelength associated with an electron accelerated through a potential V.

5. Define the term ‘dielectric constant’ of a material.

SECTION B

6. Explain briefly how a potential barrier is formed in a p-n junction diode.

7. State Lenz’s law. Show that it is a consequence of the principle of conservation of energy.

OR

Derive the expression for the self-inductance of a long solenoid. 

Please click the link below to download pdf file of CBSE Class 12 Physics for Blind Question Paper Solved 2019 Set A.