HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

Assuming expressions for path difference between two light waves for bright bands and dark bands, obtain an expression for the band width.

What is a post office box? How is the· unknown resistance measured using a post office box?

In the given Wheatstone's network, what should be the value of R for the network to be balanced?

State SI unit of Magnetization.

State SI unit of Magnetization.

The displacement of a particle performing simple harmonic motion is `1/3` ^rd of its amplitude. What fraction of total energy will be its kinetic energy?

The current in a coil changes from 50A to 10A in 0.1 second. The self inductance of the coil is 20H. The induced e.m.f. in the coil is ______.

A particle performing linear S.H.M. has a period of 6.28 seconds and a pathlength of 20 cm. What is the velocity when its displacement is 6 cm from mean position?

Define linear S.H.M.

Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.

Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.

The co-efficient of mutual induction between primary and secondary coil is 2H. Calculate induced e.m.f. if current of 4A is cut off in 2.5 x 10^-4 seconds

What are the forced vibrations and resonance?

Which of the following substances is ductile?

Which of the following substances is ductile?

If the radius of a sphere is doubled without changing the charge on it, then electric flux originating from the sphere is ______.

Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.

Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.

An iron rod of the area of cross-section 0.1m² is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10^-7 S. I. unit]  

An iron rod of the area of cross-section 0.1m² is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10^-7 S. I. unit]