each statement is false. rewrite each one as a true statement,showing as much scientific understand as possible.
1. light waves travel slower than sound waves.
2.a black object will reflect white light.
3.a translucent object lets no light through.
4.an orange object will absorb orange light.
5.blue light goes through a green filter.
6. when light is dispersed by a prism,green is at the top of the dispersed ray.
7. as light enters a block of glass it speeds up.
8.a ray is drawn as a dotted line with an arrow.
9.when light is reflected,the angle of idcidence is always at right angles to the angle of reflection.
10.a green object looks blue in a red light.
can't you help me on one question to understand how to do it. instead of doing all for me then.
if you can then,that be grateful. =]
Sorry, this is not my area, but here's a GOOGLE Search on light rays:
(Broken Link Removed)
Sra
thank you :)
1. Light waves travel faster than sound waves. (True statement)
Explanation: Light waves, being electromagnetic waves, travel at a speed of approximately 299,792 kilometers per second in a vacuum, whereas sound waves, which are mechanical waves, travel at a much slower speed, around 343 meters per second in the air.
2. A black object will absorb all colors of light. (True statement)
Explanation: When white light falls on a black object, the object will absorb all wavelengths of light across the visible spectrum, resulting in the perception of "black" to our eyes. This happens because the black object does not reflect any light back to our eyes.
3. A translucent object allows some light to pass through. (True statement)
Explanation: Translucent objects are capable of allowing some light to pass through, although it scatters the light in different directions. Due to the scattering, the object appears semi-transparent or hazy. Examples of translucent objects include frosted glass or wax paper.
4. An orange object will absorb most colors of light except orange. (True statement)
Explanation: The color we perceive as "orange" is the result of an object reflecting predominantly orange light and absorbing all other colors. Therefore, an orange object absorbs light at all other wavelengths except orange, which it reflects.
5. Blue light is blocked by a green filter. (True statement)
Explanation: A green filter selectively transmits or allows green light to pass through while absorbing or blocking light at other wavelengths. Blue light falls outside the transmitted range of a green filter, so it gets absorbed or blocked by the filter.
6. When light is dispersed by a prism, violet is at the top of the dispersed ray. (True statement)
Explanation: When white light passes through a prism, it undergoes dispersion, which means it splits into its constituent colors. The colors are separated based on their different wavelengths, with the shorter wavelengths (violet) being deviated the most, and the longer wavelengths (red) deviated the least. Therefore, violet appears at the top of the dispersed light.
7. As light enters a block of glass, it slows down. (True statement)
Explanation: When light travels from one medium to another, such as from air to glass, it enters a denser medium. As a result, the light waves interact with the atoms/molecules of the medium, causing them to be absorbed and re-emitted, leading to a decrease in the speed of light in the new medium.
8. A ray is drawn as a straight line with an arrow. (True statement)
Explanation: In diagrams or drawings, a ray of light is often represented as a straight line with an arrowhead indicating the direction of light propagation. This simplifies the representation of the path of light, especially when studying optics or performing ray tracing.
9. When light is reflected, the angle of incidence is equal to the angle of reflection. (True statement)
Explanation: The law of reflection states that when light reflects off a surface, the angle at which it approaches (angle of incidence) is equal to the angle at which it bounces off (angle of reflection). Both angles are measured with respect to a line perpendicular to the reflecting surface at the point of incidence.
10. A green object will appear black in red light. (True statement)
Explanation: When green light falls on a green object, the object will absorb that light, especially in the case of darker shades of green. In the absence of any reflected or transmitted light, the object will appear black. Thus, in red light, which does not contain any green wavelengths, the green object will not reflect or transmit any visible light, making it appear black.
We will critique your work, but not do it for you.
Thanks.