HSC Maharashtra board physics important questions of (7-8-9-10-11)
Important Question- Physics(Chapter 7)
1) What are primary and secondary sources of light?
2) What is a wavefront? How is it related to rays of light? What is the shape of the wavefront at a point far away from the source of light?
3) In Young's double slit experiment what will we observe on the screen when white light is incident on the slits but one slit is covered with a red filter and the other with a violet filter?
Give reasons for your answer.?
4) Explain what is optical path length. How is it different from actual path length?
5) Derive the laws of reflection of light using Huygens' principle.
6) Derive the laws of refraction of light using Huygens' principle.
7) Explain what is meant by polarization and derive Malus' law.
8) What is Brewster's law? Derive the formula for Brewster angle?
9) Describe Young's double slit interference experiment and derive conditions for occurrence of dark and bright fringes on the screen. Define fringe width and derive a formula for it.
10) What are the conditions for obtaining good interference pattern? Give reasons.
11) What is meant by coherent sources? What are the two methods for obtaining coherent sources in the laboratory?
12) What is diffraction of light? How does it differ from interference? What are Fraunhofer and Fresnel diffractions?
13) Derive the conditions for bright and dark fringes produced due to diffraction by a single slit.
14) Describe what is Rayleigh's criterion for resolution. Explain it for a telescope and a microscope.
Important Question- Physics(Chapter 8)
1) Describe Gauss' Law and write down Application of Gauss' Law.(pg.no.186)
2) Derive an Expression for potential energy.(pg.no.189)
3) What is Zero potential? (pg.no.190)
4) Write down Relation between electric field and electric potential.(pg.no.190)
5) Derive an expression for Electric potential due to an electric dipole. (pg.no.192)
6) Describe in detail Electrostatics potential due to a system of charges. (pg.no.193)
7) Derive an expression for Equipotential Surfaces.(pg.no.194)
8) what is Electrostatic Field? Describe
a) Potential energy of a system of two point charges
b) Potential energy for a system of N point charges
c) Potential energy of a system of two charges in an external electric field
d) Potential energy of a dipole in an external field
(pg.no.196-198)
9) What is Polar dielectrics and Non Polar dielectrics ?(pg.no.201)
10) What are the Uses of Capacitors ?(pg.no.204)
11) What is Capacitors in series and Capacitors in Parallel ?(pg.no.204-205)
12) Describe Van de Graaff Generator with Principle, Construction, Working and Uses
(pg.no.211)
Chapter 9 (Current Electricity)
1). What is Junction, Loop and Branch in Electrical Network?
2). Explain Kirchoffs Law and sign Convention and Voltage law with sign conventions ?
3). Prove condition for balancing the Wheatstone bridge with Diagram ?
4). Explain 6-Points of Application of Wheatstone Bridge ?
5). Explain MeterBridge and Their Application?
6). What is Potentiometer ? And explain their uses ?
7). Advantages of a Potentiometer Over a Voltmeter also write Merits and Demerits ?
8). How to convert a moving coil galvanometer (MCG) into an ammeter? Also What is Shunt ? Also write uses of shunt ?
9). Differentiation Between Ammeter and Voltmeter ?
10).What is potential gradient? How is it measured? Explain.
Chapter-10)
1) Derive an expression for Magnetic Force.(pg.no.231)
2) Describe Cyclotron Motion.(pg.no.232)
3) Derive an expression for Cyclotron Accelerator with diagram also prove that
4) Derive an expression for Magnetic Force on a Wire Carrying a Current.
(i) Straight wire
(ii) Arbitrarily shaped wire
5) Derive an expression of Moving Coil Galvanometer. (pg.no.238)
6) derive an expression for Magnetic Dipole Moment. (pg.no.238)
7) Derive an expression for Magnetic Field due to a Current: Biot-Savart Law. (pg.no.239)IMP
8) Derive an expression for Force of Attraction between two Long Parallel Wires.(pg.no.242)
9) Derive an expression for Axial Magnetic Field Produced by Current in a Circular Loop.(pg.no.243)
10) Describe Ampere's Law (pg.no.245)
11) What is Toroid? Describe Toroid. (pg.no.247)
Important Question-Physics (Chapter-11)
1) Which property of soft on makes it useful for preparing electromagnet?
2) What happens to a ferromagnetic material when its temperature increases above curie temperature?
3) What should be retentivity and coercivity of permanent magnet?
4) Discuss the Curie law for paramagnetic material. ERA
5) Obtain and expression for orbital magnetic moment of an electron rotating about the nucleus in an atom.
6) What does the hysteresis loop represents?
7) Derive an expression for Torque Acting on a Magnetic Dipole in a Uniform Magnetic Field.
8) Derive an expression of Magnetic Moment of an Electron Revolving Around the Nucleus of an Atom
9) Derive an expression for Magnetization and Magnetic Intensity.(pg.no.255)
10) Describe Diamagnetism.(pg.no.257)
11).....
12) What is Paramagnetism? (pg.no.258)
13) Describe Ferromagnetism a) Domain theory.(pg.no.259)
14) Derive an expression for Effect of Temperature on Magnetic.(pg.no.260)
15) Derive an expression for Hysteresis. (pg.no.261)