Refraction in Prisms and Glass Slabs

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Questions and Answers

What happens to the light ray after it passes through a rectangular glass slab?

It exits parallel to the incident ray but is laterally displaced. (correct)

It is absorbed completely.

It spreads out in multiple directions.

It is deviated at an angle.

What is true about the triangular glass prism's lateral surfaces?

They are parallel to each other.

They are all inclined at 90 degrees.

They are flat and do not refract light.

They meet at an acute angle, known as the angle of the prism. (correct)

During the refraction activity with the prism, what is the role of the pins fixed at points P and Q?

They mark the angle of incidence directly.

They are used to measure the refractive index.

They illustrate the displacement of the light ray.

They serve as reference points for finding the images seen through the prism. (correct)

What technique is employed to visualize the path of light through the prism in the described activity?

Fixing and then locating the images of pins. Signup and view all the answers

Which of the following statements about eye donation is INCORRECT?

Anyone can donate their eyes regardless of their medical history. Signup and view all the answers

What is the significance of drawing perpendiculars to the refracting surfaces at points E and F during the activity?

To help visualize the angles of incidence and refraction. Signup and view all the answers

How many corneal blind individuals can benefit from a single pair of donated eyes?

Four Signup and view all the answers

What is NOT part of the process described for evaluating donated eyes?

Exhibiting the eyes to the public. Signup and view all the answers

What phenomenon occurs when white light passes through a glass prism?

Dispersion Signup and view all the answers

What is the angle called that describes how much the emergent ray bends in relation to the incident ray when passing through a prism?

Angle of deviation Signup and view all the answers

In which order do the colors appear when white light is dispersed by a prism?

Violet, Indigo, Blue, Green, Yellow, Orange, Red Signup and view all the answers

When light enters from air into glass at the surface of the prism, what happens to the light ray?

It bends towards the normal. Signup and view all the answers

How does the shape of a prism affect the light passing through it?

It causes light to split into various colors. Signup and view all the answers

What role does the angle of the prism play in the refraction of light?

It influences the angle of deviation. Signup and view all the answers

What occurs when the light exits the second surface of the prism?

It bends away from the normal. Signup and view all the answers

What is the acronym used to remember the sequence of colors produced by the dispersion of white light?

VIBGYOR Signup and view all the answers

Study Notes

Refraction of Light through Glass Slab and Prism

Light passing through parallel refracting surfaces like a glass slab emerges parallel but slightly laterally displaced from the incident ray.
A triangular glass prism consists of two triangular bases and three rectangular lateral surfaces, with an angle between two lateral faces termed the angle of the prism.

Refraction Experiment with a Prism

Fix white paper and a glass prism on a drawing board to observe light refraction.
Use pins to indicate points on an incident ray, creating a straight line to trace the path of light through the prism.
The setup allows measuring angles of incidence, refraction, and emergence at the surfaces of the prism.

Light Dispersion with a Prism

A narrow beam of white light can be observed dispersing into a spectrum of colors when passing through a glass prism.
The light entering from air to glass bends towards the normal, while light exiting from glass to air bends away from the normal.
The unique shape of the prism results in an angle of deviation, which is the angle between the direction of the incident ray and the emergent ray.

Colors of the Rainbow

When white light passes through a prism, it separates into a spectrum of colors, commonly referenced by the acronym VIBGYOR: Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
The phenomenon of light dispersion explains the colors observed in a rainbow.

Eye Donation Process

Eyes must be removed within 4-6 hours post-mortem for donation; the nearest eye bank should be informed promptly.
Removal process takes 10-15 minutes and is non-disfiguring.
Certain health conditions prohibit eye donation, but donated eyes are thoroughly evaluated, with unusable ones directed towards research.
One pair of eyes can restore sight to up to four individuals affected by corneal blindness.

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Description

This quiz explores the concepts of light refraction through rectangular glass slabs and triangular prisms. Understand how the geometry of these structures affects the path of light and the lateral displacement caused by refraction. Test your understanding of these principles with various questions.