Default font to RTF

[Krishna Sarma]

When i give {\rtf1\ansi\deff0{\pict\jpegblip\picscalex100\picscaley100... for
RTF string, without mentioning the font details, it is taking Times New Roman
12 size as the content size. Is this the default font for RTF string?

 

[Bob I]

This is in what application, version and context?