MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Physics

The rotating vector that represents a quality varying sinusoidally with time is a ____________.

The potential difference between the points A and B in the electric circuit shown is ______.

If velocity of sound in a gas is 360 m/s and the distance between a compression and the nearest rarefaction is 2 m, then the frequency of sound is ____________.

Which among the following resistances can be determined by a metre bridge?

What is the magnetization of a bar magnet having length 5 cm and area of cross section 2 cm²? (M = 1 Am²)

In the measurement of a resistance by the Wheatstone bridge, the known and the unknown resistance are interchanged to eliminate ____________.

In a closed pipe, the note of fundamental frequency can be produced if the length of the air column is equal to ____________.

If M_z = magnetization of a paramagnetic sample, B external magnetic field, T = absolute temperature, C = curie constant then according to Curie's law in magnetism, the correct relation is ______.

In insulators, ____________.

The magnetic susceptibility of paramagnetic materials is ____________.

A ball kept at 20 m height falls freely in downward direction vertically and hits the ground. The coefficient of restitution is 0.4. After the first rebound, the upward velocity is g = 10 m/s² ?

The frequency of a tuning fork is 220 Hz and the velocity of sound in air is 330 m/s. When the tuning fork completes 80 vibrations, the distance travelled by the ______.

A progressive wave of frequency 50 Hz is travelling with velocity 350 m/s through a medium. The change in phase at a given time interval of 0.01 s is ______.

The relative magnetic permeability (`mu_"r"`) of a substance is related to its susceptibility (`chi`) as ____________.

A bar magnet having length 5 cm and area of cross-section 4cm² has magnetic moment 2Am². If magnetic susceptibility is 5 x 10^-6, the magnetic intensity will be ____________.

A particle of charge 'q' and mass 'm' moves in a circular orbit of radius 'r' with angular speed `omega`. The ratio of the magnitude of its magnetic moment to that of its angular momentum is ____________.

The magnetic moment produced in a sample of 2 gram is 8 x 10^-7 A/m². lf its density is 4g/cm³, then the magnetization of the sample is ____________.

A transverse wave is travelling with velocity 'V' through a metal wire of length 'L' and density 'ρ'. The tensile stress on the wire is ______

A uniform metal wire has length 'L', mass 'M', and density 'ρ'. It is under tension 'T' and 'v' is the speed of transverse wave along the wire. The area of cross-section A of the wire is ______ 

A plane wavefront is an incident on a water surface at an angle of incidence 60° then it gets refracted at 45°. The ratio of the width of incident wavefront to that of refracted wavefront will be ______ 

`[sin  pi/4 = cos  pi/4 = 1/sqrt2, sin60^circ = sqrt3/2, cos60^circ = 1/2]`