| Our
Model J2515 Bigap Interference Instrument is a kind of
instrument for senior mid- |
| dle
school students to carryout optical experiments. This instrument
can be used coordin- |
| ately
with Model J2507 Optical Bench and Model J1202/J1202-1 Student-use
powersorce |
| for
the students to observe the stripes of interference when a white
light beam or monoch- |
| romatic
light beam is passing through a bigap.Such a phenomenon can
be photographed |
| if a
camerabellocos is attached to it. |