What was the active medium used in the first working laser ever constructed? - Study24x7
Social learning Network
Dev kumar
15 Sep 2023 01:26 PM study24x7 study24x7

What was the active medium used in the first working laser ever constructed?

A

A diamond block

B

Helium-neon gas

C

A ruby rod

D

Carbon dioxide gas

SSC Defence Railways
Like Comment Share
study24x7
Write a comment
Related Questions
500+   more Questions to answer

Popular Courses

Post Graduate Certificate in Invest... Beginners Level English By Investment Banking 590,000 625,000 6% off
Reasoning Special by Parwez Sir for... All Levels हिन्दी By Reasoning special by Parwez Alam
RRB NTPC Previous Year Papers with ... All Levels हिन्दी By Just Asking - Lets check your knowl...
CAPF(AC) | Test Series All Levels English By Ajabs Academy Pvt Ltd
RRB NTPC Mock Test Free 2020 in Hin... All Levels हिन्दी By Topline Coaching
Online Free SSC Mock Tests All Levels English By Topline Coaching
Delhi Police Constable 2020 Live on... All Levels English By PARINAM COACHING CENTRE PVT LTD 1,499 2,499 40% off
FREE MOCK TEST FOR SSC CGL All Levels English By SSC Preparation Strategies & Study ...
Math Special Course for SSC CGL, CP... All Levels हिन्दी By Topline Coaching 999 1,499 33% off
SSC CGL, CPO, CHSL, GD Comprehensiv... All Levels English By Topline Coaching 3,999 5,499 27% off
Featured Courses
Popular Pages

Featured Courses

BESTSELLER
Reasoning Special by Parwez Sir for all Government... All Levels हिन्दी By Reasoning special by Parwez Alam
FREE
5.0
Post Graduate Certificate in Investment Banking Beginners Level English By Investment Banking 590,000 0.0
RRB NTPC Previous Year Papers with keys - In Hindi All Levels हिन्दी By Just Asking - Lets check your knowledge
FREE
5.0
NDA Exam online Course - 2021 Beginners Level English By CADETS PRIME DEFENCE 15,000 5.0
RRB JE Biology course All Levels English By Ashok Meena
FREE
4.5
CAPF(AC) | Test Series All Levels English By Ajabs Academy Pvt Ltd
FREE
5.0
Ratio,Proportion and Partnerships for Bank and SSC... All Levels हिन्दी By logicalangle
FREE
5.0
NDA Exam Online Course 2021-2022 Beginners Level English By Sigma Classes 15,000 5.0
BESTSELLER
SSC CGL, CPO, CHSL, GD Comprehensive Course All Levels English By Topline Coaching 3,999 5.0
G.S. Foundation Premium Course All Levels हिन्दी By RAU IAS COACHING 2,199 5.0

Popular Pages

Reasoning special by Parwez Alam

148 followers

SAT (Scholastic Assessment Test)

18 followers

Study24x7

1225 followers

Henry Harvin

60 followers

CBSE Study Materials

86 followers

RRB 2020-21 (Railway Jobs)

500 followers

Topline Coaching

3613 followers

SSC Preparation Strategies & Study Mater...

1543 followers

Banking/IRDA

265 followers

Vivishka Learning and Test Series

343 followers

Get the App

Download the Study24x7 App, so you can connect and collaborate.

study24x7
study24x7
Most Related Articles