| • angle of principal incidence • principal angle of incidence | |
| मुख्य: princess mainstream Major grand chief electisn | |
| आपतन: incidence | |
| आपतन कोण: angle of incidence incidence angle incident angle | |
| कोण: angle corner dip nook Angle angle valve drum | |
मुख्य आपतन कोण अंग्रेज़ी में
[ mukhya apatan kon ]
