HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

What is the rotational analogue of Newton's second law of motion?

Which of the following graphs shows the variation of the fringe width with the frequency of light in a two source interference pattern?

What is the excess of pressure inside a soap bubble of radius 3 cm if the surface tension of the soap solution is 30 dyne/cm?

A steel blade floats on the surface of pure water. When detergent is added, it sinks, why? What is capillarity?

Explain the term sphere of death.

Draw a neat labelled diagram to determine unknown resistance using a meter bridge.

Draw a neat labelled diagram of Kelvin's meter bridge circuit for the measurement of galvanometer resistance.

Why the ring jumps several metres in air in jumping ring experiment?

Find the radius of the wire of length 25m needed to prepare a coil of resistance 25Ω. (Resistivity of material of wire is 3.142 x 10^-7Ωm)

The speeds of a particle performing linear SHM are 8 units and 6 units at respective displacements of 6 cm and 8 cm. Find its period and amplitude.

Absorption of water by filter paper is due to ______.

A spring balance has a scale that reads from 0 to 50 kg. The length of the scale is 20 cm. A body suspended from this balance, when displaced and released osillates with a period of 0.6 sec. What is the weight of the body?

An iron rod is subjected to a magnetising field of 1200 Am^-1 .The susceptibility of iron is 599. Find the permeability and the magnetic field produced. 

An iron rod is subjected to a magnetising field of 1200 Am^-1 .The susceptibility of iron is 599. Find the permeability and the magnetic field produced. 

A conductor carrying a current I has three segments, as shown in figure. What is the magnetic field B at the centre of curvature C of the semicircle?

The velocities of five molecules are 2 m/s, 3 m/s, 4 m/s, 5 m/s and 6 m/s. Find the root mean square velocity of molecules.

What is meant by magnetic coupling coefficient?

Four resistances 4Ω, 4Ω, 4Ω and 12Ω form a Wheatstone's network. Find the resistance which when connected across the 12Ω resistance will balance the network.

What do you know about restoring force?

A capillary tube of radius 1 mm is immersed in a beaker of mercury. The mercury level inside the tube is found to be 0.536 cm below the level in the reservoir. Determine the angle of contact between the mercury and glass. (Given: T = 0.485 N/m, p = 13.6 x 10³ kg/m³)