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

Chalk particles cling to the black board due to ______.

Which type of force is experienced by a moving charge in a magnetic field?

Which type of force is experienced by a moving charge in a magnetic field?

State the formula for magnetic potential energy.

Find the angular acceleration of a particle in circular motion which slows down from 300 r.p.m. to 0 r.p.m. in 20 s.

A gas in a closed container is heated with 10 J of energy, causing the lid of the container to rise 2 m with 3 N of force. What is the total change in energy of the system?

State the theories which were proposed to explain nature of light.

Define the term oscillation.

Two parallel SHMs are given by `x_1 = 10 sin (8pit + pi/6) m and x_2 = 20 sin 8pit m` Find the resultant amplitude.

The dimensional formula of surface tension is ______.

Define centripetal force.

What are surroundings in thermodynamics?

The energy of the free surface of a liquid drop is 5π times the surface tension of the liquid. Find the diameter of the drop in C.G.S. system.

Explain analytically how the stationary waves are formed

Hence show that the distance between node and adjacent antinode is λ/4

Derive Laplace’s law for spherical membrane of bubble due to surface tension.

The combined resistance of a galvanometer of resistance 500Ω and its shunt is 21Ω. Calculate the value of shunt.

The combined resistance of a galvanometer of resistance 500Ω and its shunt is 21Ω. Calculate the value of shunt.

A conductor of any shape, having area 40 cm² placed in air is uniformly charged with a charge 0* 2µC. Determine the electric intensity at a point just outside its surface. Also, find the mechanical force per unit area of the charged conductor.

[∈₀=8.85x10^-12 S.I. units]

A particle in S.H.M. has a period of 2 seconds and amplitude of 10 cm. Calculate the acceleration when it is at 4 cm from its positive extreme position.