Choose the correct option from the following :

As elelctromagnetic wave travelling along z-axis is give as: E=E_0 cos(kz-omegat) . Choose the correct options from the following:

An electromagnetic wave travels in vacuum along z - direction : vec(E )=(E_(1)hat(i)+E_(2)hat(j))cos(kz-omega t) . Choose the correct options from the following :

A 17-year old boy is suffering from high fever with profuse sweating and chills. Choose the correct option from the following diseases which explains these symptoms and rule out the rest with adequate reason. (a) Typhoid (b) Viral Fever (c) Malaria

A 17-year old boy is suffering from high fever with profuse sweating and chills. Choose the correct option from the following diseases which explains these symptoms and rule out the rest with adequate reason. (a) Typhoid (b) Viral Fever (c) Malaria