RAY OPTICS BASICS
Authored by Shani Chandran
Physics
12th Grade
NGSS covered
Used 3+ times
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100 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What are the laws of reflection ?
angle of incidence = angle of reflection
incident ray , reflected ray and the normal at the point of incidence all are in the same plane
incident ray , refracted ray and the normal at the point of incidence all are in the same plane
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
What are the laws of refraction ?
angle of incidence = angle of reflection
incident ray , refracted ray and the normal at the point of incidence all are in the same plane
incident ray , reflected ray and the normal at the point of incidence all are in the same plane
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Radius of curvature of a plane mirror
zero
infinity
can be zero or infinity
25 cm
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Angle between the incident and reflected ray falling on a plane mirror is 600 . Find the angle of incidence ( i )and reflection (r)
i = r = 60
i = r = 30
i = r = 45
i = 30 , r = 60
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Image formed by a plane mirror is
real inverted and magnified
virtual erect and enlarged
virtual erect and same size
virtual erect and diminished
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Image formed by a plane mirror is
real inverted and magnified
virtual erect and enlarged
virtual erect and same size
virtual erect and diminished
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Focal length of a convex mirror of radius of curvature (R) 20 cm is
f = -20 cm
f =-10 cm
f = +10 cm
f = +20 cm
f = +40 cm
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