(A) Which one of the statements below about total internal reflection is false?
ID: 1455298 • Letter: #
Question
(A) Which one of the statements below about total internal reflection is false?
It is possible to have total internal reflection for light incident from air on water
It is possible to have total internal reflection for light incident from water to air
We can use Snell’s law to find the critical angle for total internal reflection
An application of total internal reflection is in optical fiber
(B) Which one of the statements below is true?
Images formed by a plane mirror are always virtual and upright
Images formed by a plane mirror are always real and upright
Images formed by a plane mirror are always virtual and inverted
Images formed by a plane mirror are always real and inverted
It is possible to have total internal reflection for light incident from air on water
It is possible to have total internal reflection for light incident from water to air
We can use Snell’s law to find the critical angle for total internal reflection
An application of total internal reflection is in optical fiber
Explanation / Answer
Hi,
(A) In this case I would say that the false statement is the first one, as the total internal reflection can only happen when the light travels from a medium of higher index of refraction to one with lower index of refraction. For instance: from water to air (1.333 to 1)
(B) In this case the true statement would be the first one, because the images formed by a plane mirror are always virtual, upright and of the same shape and size that the reflected object.
I hope it helps.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.