MCQ Science and Technology Class 9 Chapter 18 Maharashtra Board Observing Space : Telescopes 1. What is the name of the optical telescope launched in 1990?ChandraHubbleAstrosatGMRTQuestion 1 of 202. What is the diameter of the Hubble telescope’s mirror?45 m3.6 m25 km94 inchesQuestion 2 of 203. At what height does the Hubble telescope orbit Earth?589 km100 km1000 km25 kmQuestion 3 of 204. What type of telescope was launched in 1999 to study X-rays?HubbleGMRTChandraAstrosatQuestion 4 of 205. What special feature does the Chandra telescope use?Radio dishesLarge lensesPlane mirrorsX-ray reflecting mirrorsQuestion 5 of 206. Who is the Chandra telescope named after?Galileo GalileiHans LippersheySubramanian ChandrashekharIsaac NewtonQuestion 6 of 207. When was the Indian Space Research Organization (ISRO) established?1969199020151608Question 7 of 208. What is the aim of ISRO?Studying ocean currentsBuilding telescopesDeveloping satellite technologyExploring mineralsQuestion 8 of 209. What supports India’s telecommunication network?IRS satellitesEDUSAT satellitesINSAT and GSAT satellitesAstrosatQuestion 9 of 2010. Which satellite is used exclusively for education?INSATGSATIRSEDUSATQuestion 10 of 2011. What is the IRS satellite series used for?EducationTelecommunicationNatural resource managementWeather forecastingQuestion 11 of 2012. What satellite was launched by ISRO in 2015?HubbleChandraGMRTAstrosatQuestion 12 of 2013. What types of telescopes does Astrosat carry?Radio and opticalGamma-ray and infraredUltraviolet and X-rayVisible and radioQuestion 13 of 2014. What is unique about Astrosat?It has multiple telescopes on one satelliteIt has only one telescopeIt uses foreign partsIt orbits the moonQuestion 14 of 2015. What are most parts of Astrosat made of?Imported materialsRecycled materialsIndian-made componentsPlastic componentsQuestion 15 of 2016. What do Indian scientists study using Astrosat?Earth’s climateOcean ecosystemsTerrestrial plantsAspects of the universeQuestion 16 of 2017. Why are optical telescopes located on mountains?To avoid X-ray absorptionTo reduce atmospheric and light interferenceTo be closer to citiesTo access radio wavesQuestion 17 of 2018. Why can’t X-ray telescopes be based on Earth?X-rays are blocked by the atmosphereThey require large lensesThey need radio wavesThey are too heavyQuestion 18 of 2019. What type of mirror is used in a Newtonian telescope?Convex mirrorFlat lensCylindrical mirrorConcave mirrorQuestion 19 of 2020. What is the wavelength unit mentioned in the document?MillimeterCentimeterNanometerKilometerQuestion 20 of 20 Loading...
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