Daniel Yin, 19, a Potomac resident who was to begin his senior year at Johns Hopkins Unversity this fall, died Wednesday in a Raleigh, N.C., hospital as a result of injuries suffered in an auto accident.

Mr. Yin was returning Wednesday to his home from Fort Bragg, N.C., where he had been participating in ROTC training, when the accident occurred.

According to police, the car Mr. Yin was driving left the road and struck a disabled truck parked on the emergency apron of I-95, about five miles north of Benson, N.C., in Johnston County. The crash resulted in the death of Mr. Yin and a fellow ROTC recruit who was riding with him.

Mr. Yin was born in Philadelphia and came to Potomac in 1967 with his family.

He was a 1975 graduate of Winston Churchill High School in Potomac where he had been a member of the mathematics team. He had been a violin concert master and member of the Montgomery County Youth Orchestra while attending high school.

He was pre-med student majoring in biophysics at Johns Hopkins. He was active in a number of sports, including football and wrestling.

Mr. Yin joined the Reserve Officer Training Corps at school. In addition to his regular ROTC training he had planned to return to Fort Bragg later this month to begin airborne training school.

He is survived by his parents, Mr. and Mrs. H. B. Yin, of the home, and a grandmother, Mrs. T. S. Yang, of Athens, Ga.