Books by Author Lovekush Kumar
Explore the books by author for excelling in your discipline.
Read NowAppreciation and Promotion
Explore for "promotable images/quotes" at your social media for a better society.
Read Now
Recent Articles
From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, Explain the variation of magnetic field in the inside and outside region of the wire.
A nucleus of mass number 189 splits into two nuclei having mass numbers 125 and 64. The ratio of the radius of two daughter nuclei respectively is? NEET 2022
The volume occupied by the molecules contained in 4.5 kg water at STP, if the molecular forces vanish away, is ? NEET 2022
Molecular forces vanishes away meaning concept of gases is to be utilized.
Draw the graph when a spherical ball is dropped in a long column of a highly viscous liquid, which represents the speed of the ball (v) as a function of time (t).
Due to gravity tendency of a falling ball is of increasing velocity but due to viscous force (dragging) and thrust it faces upward force, out of these two the drag increases as velocity increases so after some time gravity is countered by thrust and drag.(upward) so no further increment in velocity.
Two pendulums of length 121 cm and 100 cm start vibrating in phase. At some instant, the two are at their mean position in the same phase. The minimum number of vibrations of the shorter pendulum after which the two are again in phase at the mean position is ? NEET 2022
Shorter pendulum faster oscillations.
Draw the graph which shows the variation of de Broglie wavelength (λ) of a particle and its associated momentum (p).
Let T1 and T2 be the energy of an electron in the first and second excited states of hydrogen atom, respectively. According to Bohr's model of an atom, the ratio T1 : T2 is? NEET 2022
The angle between the electric lines of force and the equipotential surface is ? NEET 2022
It is 90°
Electric lines of force are along (for positive charge) or opposite (for negative charge) to the electric field lines.
In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is? NEET 2022
Narrow fringes will be more in number, inverse relation with fringe width.
The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is ? NEET 2022
Write expressions and divide.
