HSC/ Plus Two/ 12th Std/ +2 Physics Model Question Paper : www.dge.tn.gov.in

Name of the Board : Tamilnadu Directorate of Government Examination
Name of the Exam : Higher Secondary
Subject : Physics
Document Type : Question Paper
Website : dge.tn.gov.in

Download Model/Sample Question Paper :
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Physics Model Paper :

PART – III :
Instructions:
(1) Check the question paper for fairness of printing. If there is any lack of fairness, inform the Hall Supervisor immediately.
(2) Use Black or Blue ink to write and pencil to draw diagrams.

Related : Directorate of Government Examination DGE HSC Chemistry Model Question Paper : www.pdfquestion.in/6942.html

Note :
Draw diagrams and write equations wherever necessary.
Note :
i) Answer all the questions.
(ii) Choose and write the correct answer.
Electromagnetic waves are :
a) transverse
(b) longitudinal
(c) may be longitudinal or transverse
(d) neither longitudinal nor transverse
Which of the following quantities is scalar ?
(a) dipole moment (b) electric force (c) electric field (d) electric potential
The self inductance of a straight conductor is :
a) zero (b) infinity (c) very large (d) very small
The stopping potential of a metal surface is independent of: (a) frequency of incident radiation
(b) intensity of incident radiation (c) the nature of the metal surface (d) velocity of the electrons emitted
For a transistor connected in common emitter mode ICE) the slope of the input characteristic curve gives
a) input impedance (b) current gain (c) reciprocal of input impedance (d) voltage gain
The specific charge of cathode ray particle
a) depends on nature of the cathode
(b) depends on the nature of the anode (c) depends on nature of gas atoms present inside discharge tube
(d) independent of all the above
The half life period of Nis 101 minute. Its life time is a) .05 minute (b) 20.2 minute . (c) infinity (d) F5E minute
The direction of force on a current carrying conductor placed in a magnetic field is by
(a) Flemings Left Hand Rule (b) Flemings Right Hand Rule (c) End Rule (d) Right Hand Palm Rule
In Youngs double slit experiment, bandwidth 8 contains
a) a bright band only
(b) a dark band only
(c) either a bright band or a dark band
(d) both a bright band and a dark band
The period of revolution of a charged particle inside a cyclotron does not depend on: (a) the magnetic induction (b) the charge of the particle (c) the velocity of the particle (d) the mass of the particle
The RF channel in a radio transmitter produces :
a) audio signals (b) both audio signal and high frequency carrier waves
(c) high frequency carrier waves (d) low frequency carrier waves
A light of wavelength 6000 Ais incident normally on a grating .005 m wide with 25lines. Then the maximum order is a) 1 (b) 3 (c) 2 (d) 4
The elliptical orbits of electron in the atom were proposed by a) II. Thomson (b) Bohr (c) Sommer Field (d) de Broglie
The explosion of atom bomb is based on the principle of: (a) uncontrolled fission reaction (b) controlled fission reaction
(c) fusion reaction
(d) thermonuclear reaction
Printed documents to be transmitted by fax are converted into electrical signals by the process of
a) reflection to scanning (c) modulation (d) light variation
Which of the following devices does not allow dic. to pass through ? (a) resistor (b) capacitor
(c) inductor (d) all of the above
According to Rutherford atom model, the spectrum emitted by an atom is a) line spectrum (b) continuous spectrum (c) continuous absorption spectrum (d) band spectrum
(a) Conversion of momentum (b) Conversion of energy into mass (c) Principle of conservation of charge (d) Phenomenon of conversion of kinetic energy into radiation
Two point charges q and — are placed at points A and B respectively separated small distance. The electric field intensity at the midpoint O of AB
(a) is zero (b) acts along AB (c) acts along BA (d) acts perpendicular to AB
The power loss is less in transmission lines, when : a) voltage is less but current is more
(b) both voltage and current are more
(c) voltage is more but current is less
(d) both voltage and current are less
Polarising angle for water is . If light is incident at this angle on water and reflec angle of refraction is
1 Curie is :
a) activity of 1 g of uranium
(b) 1 disintegrationsecond
(c) .7×1010 becquerel
(d) 1.6×10” disintegrationsecond
Which of the following devices has a source of emf inside it? (a) Voltmeter (b) Ammeter (c) Ohmmeter (d) Rectifier
An electric dipole of dipole moment p” is kept parallel to an electric field of intensity E”. The work done in rotating the dipole through an angle of 90° is :
a) Zero (b) pE (c) pE (d) 2pE

Note : Answer any fifteen questions.
Define one Coulombon the basis of Coulombs law.
What is a polar molecule ? Give an example.
State Ohnns law.