How to display photo in mvc

I have uploaded photos successfully in "Content/Student/Photo" folder of my project but can't display them in Index view.

here is my short code:

Model:

public string FirstName { get; set; }

[Display(Name = "Upload Image")]
[NotMapped]
public HttpPostedFileBase Photo { get; set; }

Index View(for display):
@Html.DisplayNameFor(model => model.FirstName)
@Html.DisplayNameFor(model => model.Photo)

@foreach (var item in Model)

{
@Html.DisplayFor(modelItem => item.FirstName)

@Html.DisplayFor(modelItem => item.Photo)

}

what changes should be made in the Index view??