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Question
Four students perform an experiment on tracing the path of a ray of light passing through a rectangular glass slab. Their individual observations are:
identify the incorrect observation and correct them.
Four students perform an experiment on tracing the path of a ray of light passing through a rectangular glass slab. Their individual observations are:
identify the incorrect observation and correct them.
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Solution
The correct options are
A angle of emergence is less than the angle of refraction
B angle of emergence is greater than the angle of incidence
C emergent ray is parallel to the refracted ray
A. We know that angle of incidence is equal to angle of emergence.
And for a light ray going from rarer to denser medium we also know that angle of incidence is greater than angle of refraction
Thus it implies that angle of emergence is greater than angle of refraction. B. angle of emergence is equal to angle of incidenceC. Since angle of emergence is equal to angle of incidence, thus emergent ray is parallel to incident ray.
A angle of emergence is less than the angle of refraction
B angle of emergence is greater than the angle of incidence
C emergent ray is parallel to the refracted ray
A. We know that angle of incidence is equal to angle of emergence.
And for a light ray going from rarer to denser medium we also know that angle of incidence is greater than angle of refraction
Thus it implies that angle of emergence is greater than angle of refraction.
B. angle of emergence is equal to angle of incidence
C. Since angle of emergence is equal to angle of incidence, thus emergent ray is parallel to incident ray.
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