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Home /Doubts and Solutions/CBSE/Class 12 Science

CBSE Class 12 Science Free Doubts and Solutions

CBSE - XII Science - Physics

Asked by Nishantthakre95 15th September 2019, 5:53 AM

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two coherent sources are one millimetre apart from each other the screen is placed at a distance of 25 cm from the sources if the wavelength of light is 6000 what will be the fringe of  width of the interference pattern

Asked by avisharma804402 15th September 2019, 1:15 AM

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Prove that y=2^x always lie above y=x for all x belonging to real numbers

Asked by Nishantthakre95 13th September 2019, 11:44 AM

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How iodonium in will be generated without using Lewis acid in iodonation of benzene as we are using only HNO3

Asked by govtsecschoolnayaganv051 11th September 2019, 1:10 PM

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I need all the formulas of solutions lesson.

Asked by nireshbillygraham 8th September 2019, 11:39 AM

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A circular coil in the form of quadrilateral  is placed in a uniform magnetic field and a current flow through it.  The net magnetic force acting on opposite side  a) must be zero b) may be zero c) must not be zero D) may not be zero

Asked by girish.me.47 8th September 2019, 6:54 AM

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why does the position of cenral maxima not depend on wavelength and name the factors which determine the central maxima (for diffraction)

Asked by prakriti12oct 6th September 2019, 9:54 AM

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Let there be 'n' people in a room. What is the probability that atleast two people have the same birthday? If another person joins the room, what is the new probability of the above case? What is the value of 'n', for it to be 0.5?

Asked by bjayanta 4th September 2019, 9:31 PM

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A ball of mass M moving at a speed V make the head on collision with another identical ball At rest the kinetic of the ball after collision is 4% of the original.find the cofficient of restitution

Asked by ritukkr4444 1st September 2019, 12:49 PM