Explain why we cannot see in the dark.
Q: Why do objects illuminated by moonlight lack color?
A: Objects illuminated by moonlight do not lack color. It is just that the intensity of moonlight is…
Q: Can you see a rainbow at night?
A: When the sunlight being reflected and refracted inside raindrops the rainbow is formed. Thus, it is…
Q: Which of the following colors would have a wavelength of 425 nm? O yellow O red green O blue
A: Colour Wavelength (nm) Violet 400 Blue 450 Cyan 500 Green 550 Yellow 580 Orange 600…
Q: What happens to a light ray when it travels from one material into a thicker (denser) material? Into…
A: Light waves change speed when they pass across the boundary between two substances with a different…
Q: What is illumination A) The candlepower incident on a surface. B) Candela per unit area incident on…
A: We are asked about the definition of "illumination". We need to choose the correct option as per…
Q: The masses m, are located at the points P;. Find the moments M, and M, and center of mass of the…
A:
Q: Which are more easily diffracted by ordinary objects, AM radio waves or FM radio waves? Explain why
A: AM radio waves.
Q: Light can travel from air into water. Some possible paths for the light ray in the water are shown…
A: Given, The ray of light is moving from air to water.
Q: Light can leave a surface through two fundamental processes: self-emission and reflection. Explain…
A: In nature the two most fundamental ways a photon can leave the surface are, 1. Self Emission 2.…
Q: If there were no signs of rain, would you be able to see a rainbow outside? Why or why not?
A: If there were no signs of rain, would you be able to see a rainbow outside?
Q: 6) A light ray traveling in air strikes glass at an angle of 30 degrees to the perpendicular, what…
A: Consider a light ray strikes on glass from air at an angle i with normal and the refractive…
Q: Consider two waves of light, A and B. Wave A has a lower frequency than wave B. Then wave B must…
A: Given data: Two waves of light are A and B A has lower frequency fA < fB
Q: Does one of these visible light waves move faster than the others? Which one is fastest and why?
A: Light waves are the type of electromagnetic waves or EM Waves. It consist of oscillating electric…
Q: What is the relationship between the angle of incidence and the angle of refraction when light…
A: Light is a type of energy that allows humans to see. Light comes from a source and bounces off…
Q: Give at least three reasons why reflecting telescopes are superior to refractors.
A: Telescopes are optical devices that collect light from distant objects to form an image or a sensor.…
Q: Does light travel in straight line? Explain your answer.
A: Light travels in form of energy packets known as photons. These energy packets travel with speed of…
Q: ay of light from the ray box should be as narrow as possible.Explain why using a wider ray would…
A: When light travels in air, it encounters various phenomena like interference, refraction,…
Q: Which of the light rays in the figure is drawn incorrectly? a b- C d e d Ob C a a e C
A:
Q: answer is hard to read, can you make it more clear to see?
A:
Q: If you look through a piece of very fine fabric at a tiny white light source, you will see a rainbow…
A: A very fine fabric
Q: Explain Why does a dark-blue suit appear black by candlelight?
A: We know candle light emits orange/red light. And any object have colour due to the light it reflects…
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- Calculate the luminous flux of a spotlight mounted on the ceiling at 45 degrees, having an intensity of 200cd, and lighting a religious icon mounted on a table 600mm from the floor. The height of the prayer room from floor to ceiling is 2400mm.Based on how it refracts light, what would you expect images formed by a concave lens to look like? The same as the objects that they are images of Reversed Smaller MagnifiedIf you use an ordinary electric lamp with a frosted bulb to cast a shadow of your hand on the wall, are all parts of the shadow equally dark? Explain