How to access picturebox in one form , from another form - C#

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C#

controls

in Form1

public PictureBox pic
       {
           get
           {
               return pictureBox1;
           }
       }

in Form2,

private void button5_Click(object sender, EventArgs e)
      {
          getpic();
      }


      private void getpic()
      {
          Form1 frm = new Form1();
          frm.pic.Visible = true;
      }

What I have tried:

I have tried with the above code. I am not getting any error but also it doesn't gives the desired output. Also based upon the test result i need to load the image from form2 (if pass - tickmark.jpg,if fail - Xmark.jpg). Please let me know how to achieve the result.