Physics Answers

A parallel polarized wave is incident from air into paraffin having relative permittivity 3, the value of its Brewster angle is

In a 100 turn coil, if the flux through each turn is (t3 - 2t)mWb, the magnitude of the induced emf in the coil at a time of 4 sec is

an object thrown up with a instant velocity 40m/s from grounds. assume the energy is conservative. find a) maximum height

b)when where does PE = KE if mass m=2kg

The Depth of penetration of EM wave in medium having conductivity σ at a frequency of 1 MHz is 25 cm. The depth of penetration at a frequency of 4 MHz will be

Which of the following should dominant wave have?

A.Lowest cut off frequencyB.Highest cut off frequencyC.No attenuationD.No phase shift

an object thrown up with an instant velocity 40m/s from grounds. assume the energy is conservative. find the maximum height

A plane electromagnetic wave travels in dielectric medium of relative permittivity 9. Relative to free space, the velocity of propagation in the dielectric is

A particle of mass 3 units moves in the xy plane under the influence of the force field having potential 36xy-48x^2. The particle starts at t=0 , set up a differential equations for this

Find the magnification of the image formed by a lens of 5 dioptres when the object is 20m away from it

A satellite weighing 1600 kg revolves aroundt the Earth in an orbit radius three times that of the Earth.If the radius of the Earth is 6.4x10⁶m,what is the centripetal force acting on the satellite?