La référence d'objet n'est pas définie

Public Class Form1
    Public t(10) As PictureBox
    Dim p As New PictureBox


    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick


        t(0) = p
        t(0).Image = Image.FromFile("C:\images\image7.jpg")
        t(0).SizeMode = PictureBoxSizeMode.StretchImage
        t(0).Visible = True
        t(0).Width = 100
        t(0).Height = 50
        t(0).Left = 0
        t(0).Top = 240
        Controls.Add(t(0))
        Timer1.Enabled = False
        Timer2.Enabled = True



    End Sub

    Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
        
        t(0).Left = t(0).Left + 10\\ le défaut et ici
        If (t(0).Location.X >= 300) Then
            Timer2.Enabled = False
            Timer1.Enabled = True