1) in what way is an image formed by a mirror inverted?
A) from top to bottom
B) by refraction
C) from left to right
D) from front to back
2) Which of the following statements about light is true
A) The speed of light in a vacuum depends on the wavelength of the light
B) the speed of light in a vacuum depends on the frequency of the light
C) light cannot travel through the vacuum
D) The speed of light in a vacuum is 3•10^8 m/s
Your West side remains your West side, so your left looks like it is right.
( C )
As for the other 3 * 10^8 meters / second is what I kind of count on even on earth.
Thank you so much!
1) The correct answer is C) from left to right. When an image is formed by a mirror, it appears inverted horizontally, meaning it is flipped from left to right.
To understand why, you can use the principle of reflection. When light rays hit a mirror, they bounce off according to the law of reflection, which states that the angle at which the incoming ray hits the mirror is equal to the angle at which the reflected ray leaves the mirror. In this case, since the mirror is flat, the angle of incidence (the angle between the incoming ray and the normal line drawn perpendicular to the mirror) and the angle of reflection (the angle between the reflected ray and the normal line) are both equal.
Imagine that you're looking at an object in front of a mirror. The light rays coming from the top of the object will hit the mirror at a certain angle and bounce off, creating an image that appears to be coming from below the object. Similarly, the light rays coming from the bottom of the object will hit the mirror at a different angle and create an image that appears to be coming from above the object. These deviations from the normal direction of light rays lead to the inversion of the image horizontally.
2) The correct answer is D) The speed of light in a vacuum is 3•10^8 m/s. The speed of light in a vacuum is often denoted by the symbol "c" and is approximately 3•10^8 meters per second.
This value is a fundamental constant in physics and does not depend on the wavelength or frequency of the light. It represents the maximum speed at which information or energy can be transmitted through space.
The speed of light in a vacuum is of significant importance in the field of physics as it forms a foundation for many theories and equations. It plays a crucial role in electromagnetic theory, relativity, and quantum mechanics, among other areas of study.
The speed of light in a medium other than a vacuum, such as air, water, or glass, is typically slower than the speed in a vacuum due to interactions with atoms or molecules in the material.