A beam of light is converging towards a point `I` on a screen. A plane glass plate whose thickness in the direction of the beam `=t` , refractive index `=mu` , is introduced in the path of the beam. The convergence point is shifted byA. `t(1-1/mu)` awayB. `t(1+1/mu)` awayC. `t(1-1/mu)` nearerD. `t(1+1/mu)` nearer

A beam of light is converging towards a point `I` on a screen. A plane

1.	A beam of light is converging towards a point `I` on a screen. A plane glass plate whose thickness in the direction of the beam `=t` , refractive index `=mu` , is introduced in the path of the beam. The convergence point is shifted byA. `t(1-1/mu)` awayB. `t(1+1/mu)` awayC. `t(1-1/mu)` nearerD. `t(1+1/mu)` nearer
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