Q. Piezoelectric crystals are used in

A) TV
B) Radio
C) Freeze
D) Record player
Explanation

The correct answer is Option D: Record player.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.