Inventions MCQs – Certification Test 490

Spectrograph MCQs (Question 490) – App & e-Book Download

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MCQ 490: Spectrograph was invented by:

Sir Henry W. Seelay
Sir Schuyler Skaats Wheeler
Sir Walter Wingfield
Sir George Carruthers

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Free Spectrograph Mobile App – Download for Android & iOS

Download the Spectrograph MCQs App: Learn Spectrograph Notes, General Knowledge MCQs App, and Distributed Computing MCQs App to study scientific inventions.

Free "General Knowledge MCQs" App: Download the Spectrograph Learning App (Android & iOS) for invention educational success. Download Play Store & App Store Study Apps with all functionalities for invention remote instruction platforms.