Correct option is B
The refractive index is a ratio of the speed of light in a vacuum (c) to the speed of light in a medium (v). Since it is a ratio of two similar quantities (speed), it is dimensionless and has no unit.
All Courses
- Bank Maha Pack
- Bank Exams 2026-27
- RBI Assistant
- IBPS RRB PO Clerk
- RBI Attendant
- SBI PO
- IBPS PO
- SBI Clerk
- Bankers Adda
- IBPS Clerk
- SBI CBO
- Bank of Baroda
- LIC AAO
- NIACL AO
- ECGC PO
- RBI Grade B
- NICL
- SEBI
- Bank Batches 2025
- Indian Bank Apprentice
- IBPS SO
- Indian Overseas Bank
- NIACL Apprentice
- Union Bank Apprentice
- Indian Overseas Bank Apprentice
- Bank Foundation Batches 2025
- IBPS RRB Clerk
- LIC Assistant
- UIIC
- Bank of India
- MP Cooperative Bank
- Nainital Bank
- IRDAI Assistant Manager
- Rajasthan Cooperative Bank
- IBPS RRB GBO SO
- IDBI
- HDFC Bank
- IBPS RRB SO
- AIC
- Punjab & Sind Bank
- Union Bank SO
- Banking Books
- CBI Apprentice
- Bihar State Co-operative Bank
- Banking Offline
- BOB LBO
- IBPS SO IT Officer
- IB ACIO
- NIACL Assistant
- IBPS RRB PO
- OICL
- HPSCB
- AI Skills
- JAIIB CAIIB MAHAPACK
- Bombay High Court
- NABARD
- Bank Of Maharashtra
- MP Apex Bank
- SBI SO
- NABARD Development Assistant
