Identify the option a or b correctly along with its function/characteristic. ltimg src=\"https://
Channel: Doubtnut
Date: 26/01/2020

Identify the option a or b correctly along with its function/characteristic. ltimg src=\"https://d10lpgp6xz60nq.cloudfront.net/physics_images/A2Z_BIO_XII_C03_E03_038_Q01.png\" width=\"80%\"gt