Does work has direction associated with it?

Every substance has some magnetic properties associated with it. How will you account for the following magnetic properties? Paramagnetic property.

Every substance has some magnetic properties associated with it. How will you accound for the following magnetic properties? Ferromagnetic property.

The de Brogile wave corresponding to a particle of mass .m. and velocity .v. has a wavelength associated with it.

A electron is accelerated through a potential difference of 100V. What is de-Broglie wavelength associated with it? To which part of the electromagnetic spectrum does this value of wavelength correspond?

If a line has direction cosines , then find the direction ratios.

What are examples of pairs of antagonistic hormones associated with basal metabolism?How does each pair function?

What is meant by the transverse nature of electromagnetic waves? Draw a diagram showing the propagation of an electromagnetic wave along the X-direction, indicating clearly the directions of the oscillating electric and magnetic fields associated with it.

If a long copper rod carries a direct current, the magnetic field associated with the current will be