Transmission of Light
Physics ⇒ Light and Optics
Transmission of Light starts at 8 and continues till grade 12.
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See sample questions for grade 12
A beam of white light passes through a prism and splits into different colors. What is this phenomenon called?
A glass slab has parallel faces. If a light ray enters the slab at an angle, what happens to the emergent ray?
A ray of light passes from air into a medium and bends towards the normal. What can you infer about the refractive index of the medium compared to air?
Describe the process of light transmission through a fiber optic cable.
Describe what happens to the intensity of light as it passes through a series of identical transparent sheets.
Explain why a pencil appears bent when placed in a glass of water.
Explain why objects appear less distinct when viewed through frosted glass.
A student shines a laser beam into water at an angle of 45°. If the refractive index of water is 1.33, what is the angle of refraction? (Use n₁=1 for air)
When light passes from air (n=1.00) into water (n=1.33), does its speed increase, decrease, or remain the same? (1) Increase (2) Decrease (3) Remain the same
Which of the following best describes total internal reflection? (1) Light passes through a medium without bending (2) Light is completely reflected back into the original medium (3) Light is partially transmitted and partially reflected
Which of the following colors of visible light is refracted the most when passing through a prism? (1) Red (2) Green (3) Blue (4) Violet
Which of the following is NOT a factor affecting the transmission of light through a medium? (1) Thickness of the medium (2) Color of the light (3) Temperature of the medium (4) Shape of the light source
The law of refraction is also known as ______ law.
The phenomenon where light changes direction as it passes from one medium to another is called ______.
The refractive index of a medium is defined as the ratio of the speed of light in ______ to the speed of light in the medium.
The refractive index of water is approximately ______.
True or False: Light can be transmitted through a vacuum.
True or False: Light can be transmitted through solids, liquids, and gases.
True or False: The angle of refraction is always less than the angle of incidence when light passes from a rarer to a denser medium.
True or False: The critical angle is the angle of incidence above which total internal reflection occurs.
