CDS 2009 PYQ with Answer — Laser is a device to produce

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Atlas Essay Optional Vistaar

UPSC CDSCombined Defence Services Overview

Test Series

Daily Quiz
Mock Tests
All-India Test

Study

Syllabus
PYQs
Trends
Practice

Progress

Analytics
Rankings
Results

AI Tools

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Exit to Mains

Overview Daily Quiz Mock Tests All-India PYQs Practice

CDS 2009 · General Knowledge (CDS-II)Q76

Back to the full 2009 paper

2009 · Q76

Laser is a device to produce

General KnowledgePhysics

Aa beam of white light
Bcoherent light
Cmicrowaves
DX-rays

Explanation

A laser produces coherent light.

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