Practice paper for class XINCERT 11 solid (1)
Practice Paper for class XII of 2020 from 2nd book
Total marks -36
Time- 90 minutes
Each question carries 3 marks
Q1- Obtain the relation between angle of minimum deviation for a prism and its refractive index .
Q2- (i) Draw the ray diagram for a reflecting type telescope .
(ii) Write down the advantage of reflecting type telescope over refracting type telescope
Q3- Define critical angle . Write down the condition for total internal reflection. What is optical fibre?
Q4- State Huygens principle . Draw the wavefront due to a point source .
Q5- Prove that for destructive interference path difference between two light waves should be odd integral multiple of λ/2.
Q6- State Malus law.
Establish brewster’s law .
Q7- Draw the ray diagram for Davision and Germer experiment.
Write down few application of de Broglie’s hypothesis .
Q8- state Bohr’s postulate .
Write down its failures.
Q9- Draw and explain binding energy curve .
Q10- Explain the working of zener diode as a voltage regulator.
Q11- Write down Boolean expression and truth table for NOR and NAND gate . How NOT gate can be obtained from NOR gate ?
Q12- define the following terms
(i) modulation index
SAMPLE PAPERS / 2019 / AHSEC / XII / PHYSICS / NO.-01SAMPLE PAPER 2019_A