Sample Paper Physics class 12th 2013

Feb 17 • General • 2266 Views • 1 Comment on Sample Paper Physics class 12th 2013

sample paper physics class 12

ANNUAL EXAMINATION

PHYSICS- 12TH                                              TIME -3 HOURS

SET-B                                                      MAX. MARKS- 75

MIN. MARKS- 27

NOTE:READ THE INSTRUCTION CAREFULLY BEFORE ATTEMPTING THE QUESTION.

*ATTEMPT ALL OBJECTIVE TYPE QUESTION  EACH OF 1 MARKS.

Q.1 WHICH GATE IS ALSO KNOWN AS SINGLE BUBBLED EX-OR GATE;
a) OR GATE

b) EX-OR

c) EX NOR

d) NAND GATE

Q.2  WHAT IS THE QUALITY FACTOR  OF SERIES L-R CIRCUIT?

a) Q=WLR

b) Q=RW/L

c) Q=WL/R

d) Q=R/WL

Q.3 WHAT IS CURRENT ?

a) FLOW OF PROTONS

b) FLOW OF ELECTRON

c) FLOW OF ANIONS

d) FLOW OF CATIONS

Q.4 WHICH GATE MAKE S ALL GATES?

a) AND

b) OR

c) NAND

d) NOT

Q.5 WHAT IS THE REVERSE CUT OFF VOLTAGE FOR SILICON(mv)?

a).6

b).5

c).7

d).3

*ATTEMPT  8 QUESTIONS OUT OF 10 EACH OF 5 MARKS.

Q.1 WHAT DO YOU MEAN BY CURRENT CARRYING CIRCULAR LOOP?

Q.2 Explain 2 OUT 0F 3:
a)ZENER DIODE

b)TUNNEL DIODE

c)LED

Q.3  DRAW THE I-V CHARACTERISTICS OF PN DIODE IN BOTH MODE?

Q.4 WHAT DO YOU MEAN BY EDDY CURRENT?

Q.5 EXPLAIN SELF AND MUTUAL INDUCTION?

Q.6 DRIVE THE DERIVATION FOR COFFICIENT OF COUPLING?

Q.7 EXPLAIN LAWS OF REFLECTION?

Q.8 WHAT DO YOU MEAN BY DRIFT VELOCITY?

Q.9 EXPLAIN POLARISATION?

Q.10 EXPLAIN AMPERES LAW?

 

*ATTEMPT 3 QUESTION OUT OF 4 EACH OF 10 MARKS;

Q.1 EXPLAIN WHEAT STONE BRIDGE AND DRIVE ITS BALANCING EQUATION?

Q.2 EXPLAIN VAN DE GRAAFF GENERATOR WITH NEAT AND CLEAN DIAGRAM?

Q.3WHAT DO YOU MEAN BY POTENTIOMETER AND  ITS APPLICATION?

Q,4 WHAT DO YOU MEAN BY CYCLOTRON AND ITS USES?

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