SSC CPO 2018 Physics GK PDF Download

SSC CPO 2018 Physics GK PDF Download :- 13 Q&A’s Exam was conducted from 12 March to 16 March 2019 Q.9:- Which of the following instruments measures infra-red radiation? निम्नलिखित में से कौन सा उपकरण अवरक्त विकिरण को मापता है? [14 March 2019 Morng Shift] 1. Pyrheliometer 2. Cathetometer 3. Bolometer 4. Phenograph Ans:- Bolometer … Read more