Positive rays

In an experiment for positive ray analysis with Thomson method, two identical parabola are obtianed when applied electric fields are 3000 and 2000 V//m . The particles are singly ionised particles assuming same magnetic field :

Which rays contain (positive) charged particle ?

In a region of space , cathod rays mov along positive Z- axis . If and a uniform magnetic field applied along x- axis . If cathod rays pass undevited , the direction of electron field will be along

A ray of light is coming along the line y=b from the positive direction of x-axis and striks a concave mirror whose intersection with xy-plane is a parabola y^2 = 4ax . Find the equation of the reflected ray and show that it passes through the focus of the parabola. Both a and b are positive.

From the focus (-5,0) of the ellipse (x^(2))/(45)+(y^(2))/(20) =1 , a ray of light is sent which makes angle cos^(-1)((-1)/(sqrt(5))) with the positive direction of X-axis upon reacting the ellipse the ray is reflected from it. Slope of the reflected ray is

Canal rays are positively charged.

A : The charge to mass ratio of the particles anode rays depends on nature of gas taken the discharge tube . R : The particles of anode rays carry positive charge

Statement-I : When X-ray incident on metal, the ejection of electron shows the particle nature of X-ray. Statement-II : X-ray is positively charged particle.