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 10
A beam of light passes through a glass slab and emerges parallel to its original path. What phenomenon does this illustrate?
A glass block has a refractive index of 1.6. If the speed of light in vacuum is 3.00 × 10^8 m/s, what is the speed of light in the glass block?
A ray of light passes from air (n=1.0) into water (n=1.33) at an angle of 30° to the normal. Calculate the angle of refraction in water (to the nearest degree).
A student measures the intensity of light before and after it passes through a filter. If the initial intensity is 100 units and the transmitted intensity is 60 units, what is the transmittance of the filter?
A student observes that a red filter only allows red light to pass through. What property of the filter is responsible for this?
Describe how the thickness of a material affects the amount of light transmitted through it.
Describe how the transmission of light is important in the functioning of optical fibers.
Describe what happens to the intensity of light as it passes through a thick piece of tinted glass compared to a thin piece.
Describe what happens to the path of light when it passes from air into water at an angle.
Explain the difference between transparent, translucent, and opaque materials with examples.
Explain why a pencil appears bent when placed in a glass of water.
Explain why frosted glass is used in bathroom windows.
Explain why sunglasses are often made with polarized lenses.
If the refractive index of glass is 1.5, what is the speed of light in glass? (Speed of light in vacuum = 3.00 × 10^8 m/s)
What is meant by the transmission of light?
What is the main reason why light slows down when it enters a denser medium?
What is the term for the bending of light as it passes from one medium to another?
