Light Energy
Quiz by Nikita Mukhopadhyay
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10 questions
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- Q1In ________________ mirror all rays of light parallel to principal axis diverges after reflection and appear to come from the principal focusconvexconcaveplaneconvex60s
- Q2_____________________________ mirrors are used in reflector-type telescope.ConcavePlaneConvexConcave60s
- Q3Is this person using a convex or concave mirror?Concave mirrorConcave mirrorConvex MirrorPlane Mirror60s
- Q4A spherical mirror is a part ____________________________________________________ .of a hollow glass sphere with one of the curved surfaces polished .of a hollow glass sphere with one of the curved surfaces polished .of a dense glass sphere with only outer surface polished.of a hollow glass sphere with only inner surface polished60s
- Q5The length of a straight line joining two opposite extreme points on the periphery of a spherical mirror is called ______________________ .optical centrelinear apertureprincipal axislinear aperture60s
- Q6State the nature of the image formed.Real, erect and diminishedVirtual, inverted and magnifiedvirtual, erect and diminishedvirtual, erect and diminished60s
- Q7Concave mirrors are used in floodlights in cricket stadium. Where are the bulbs located?At focusBetween focus and poleBetween focus and centre of curvature.Between focus and pole60s
- Q8In case of concave mirror the centre of curvature lies _________________ the reflecting surfaceoutsideboundary ofin front ofin front of60s
- Q9The diameter of the reflecting surface of a spherical mirror is called as ____________centre of curvaturecentre of curvaturefocal length of the curvatureradius of curvature60s
- Q10In concave mirror, the size of the image depends uponposition of the objectshape of the objectsize of the objectposition of the object60s