Question

electromagnetic waves are affected with electric field but not affected with magnetic field​

Answer 1

Explanation:

Yes, it’s called vacuum birefringence, where a very strong magnetic field can cause anisotropy and birefringence of the empty space, in much the same way calcites splitting the light.

However, the field required to produce such phenomenon is very strong, which is many orders of magnitude higher than the strongest magnet available on Earth. Such super strong magnetic field is only available on neutron stars.

So yes, electromagnetic waves are in fact affected by magnetic fields, but it is a very weak effect that only becomes manifest in the presence of extremely strong magnetic fields.