MCQ Chapter 16 General Science Class 8 Maharashtra Board MCQ For All Chapters – General Science Class 8Reflection of Light 1. What is the main component used in a kaleidoscope to create patterns?LensesMirrorsPrismsFiltersQuestion 1 of 202. How many mirrors are used in the kaleidoscope activity?TwoThreeFourFiveQuestion 2 of 203. What is the purpose of the hole in the kaleidoscope?To insert glass piecesTo look through toward lightTo reflect light outTo close the endQuestion 3 of 204. What angle do the mirrors make with the sides of the box in a periscope?30°45°60°90°Question 4 of 205. What is a periscope used for in submarines?To measure depthTo see objects above the water surfaceTo reflect sunlightTo communicateQuestion 5 of 206. If the angle of reflection is 60°, what is the angle of incidence?30°60°90°120°Question 6 of 207. If the angle between the incident ray and reflected ray is 90°, what is the angle of incidence?30°45°60°90°Question 7 of 208. If the angle between the mirror and incident ray is 35°, what is the angle of incidence?35°55°65°90°Question 8 of 209. If the angle of incidence is 40°, what angle does the reflected ray make with the mirror?40°50°60°90°Question 9 of 2010. The perpendicular to the mirror at the point of incidence is called:Reflected rayNormalIncident rayAngle of incidenceQuestion 10 of 2011. The reflection of light from a wooden surface is:Regular reflectionIrregular reflectionSmooth reflectionDirect reflectionQuestion 11 of 2012. The working of a kaleidoscope is based on the properties of:RefractionReflectionAbsorptionDiffusionQuestion 12 of 2013. Why can’t we see objects in a dark room?Light is absorbedNo light enters our eyesObjects disappearEyes stop workingQuestion 13 of 2014. What blurs the images in still water when a stone is thrown?Regular reflectionIrregular reflectionAbsorption of lightRefraction of lightQuestion 14 of 2015. In the exercise, if the angle between the mirror and incident ray is 40°, what is the angle of incidence?40°50°60°70°Question 15 of 2016. If the angle between the mirror and reflected ray is 23°, what is the angle of incidence?23°47°67°90°Question 16 of 2017. What is the angle of reflection if the angle of incidence is 30° in the mirror activity?30°45°60°90°Question 17 of 2018. What type of surface causes reflected rays to be parallel in figure 16.4?Rough surfaceSmooth surfaceCurved surfaceWooden surfaceQuestion 18 of 2019. What is used to close one end of the kaleidoscope?Black paperWhite paperMirrorGlassQuestion 19 of 2020. What is the project about in the exercises? Building a periscope Measuring the Moon’s distance using mirrors Creating a kaleidoscope Studying irregular reflectionQuestion 20 of 20 Loading...
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