how to convert varchar to varbinary

declare @char nvarchar(100) = N'salam chetori'
declare @varbinary varbinary(100)
set @varbinary = convert(varbinary(max), @char)
select @varbinary
set @char = convert(nvarchar(max), @varbinary)
select @char

SELECT CONVERT(VARBINARY(25), '0x9473FBCCBC01AF', 1);
------------ the ,1 is important ---------------^^^