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Model Papers of Class 12th (Physics) Subjective for SSC Annual Examination 2018

Paper PHYSICS (New) Inter Part 2nd

Note: Time allowed for Section - B and Section - C is 2 Hours and 40 minutes.

Section -B

Q-II) Atempt any TEN parts. Each pad carries FOUR marks.

1- Do the electron tends to go to the region of low potential or high potential? Explain.
2- Define electric flux and briefly explain when will be the flux minimum and maximum?
3- Describe a circuit which gives a continuously varying electric potential.
4- Can step up transformer increase the power level? Explain.
5- Why don't we observe Compton Effect with ordinary light?
6- The peak voltage is 500 volts. What is the effective value of voltage?
7- A panicle which produces more ionization is less penetrating. Why?
8- What do we mean by critical mass?
9- Why Laser light is harmful to our Eyes as compare to ordinary light?
10- Differentiate between inedial and non inedial frame of reference.
11- Differentiate soft and hard magnetic material with examples.
12- What do we mean when we say that the atom is ionized?
13- Why the base current is weak as compared to collector current?

Section - C

Note : Attempt any THREE questions. All questions carry equal marks.

Q-III) (a) What is capacitor? Find the capacitance of a parallel plate capacitor.
(b) A capacitor is connected in series with a resistor and charged. Explain why the potential difference across the resistor decreases with time during the charging?

Q-IV) (a) Discuss in detail Photon, Leptons and Hadrons with examples.
(b) Calculate the current through a single loop of circuit if E = 12V, R = 100 ohm and r = 0.001 ohm?

Q-V) (a) State Einstein's postulate of special theory of relativity. Discuss its various results.
(b) What is he mass of a 60 kg man in a space rocket traveling at 0.8 C from us as measured from earth?

Q-VI) (a) Write a short note on any two of the following.

(1) Magnetic Hysteresis
(2) LASER
(3) Metal detector