Suppose that the is moved so that the tree is between the focus point F and the mirror. What happens to the image of the tree? ) A The image moves behind the curved mirror.
B The image appears shorter and on the same side of the mirror
C The image appears taller and on the same side of the mirror .
D The image stays the same .
Which statement best describes the refraction of light as it moves from air to glass? point) A Light bends due to the difference in the speed of light in air and glass
B Light undergoes diffraction due to the difference in the speed of light in air and glass. C Although the light changes speed, it continues in the same direction as before.
D Although the light bends, its speed remains the same as before.
What is one way that light waves differ from sound waves?A Light waves transfer energy
B Light waves do not require a medium to propagate.
C Light waves all have the same frequency
D Light waves travel by oscillation.
How do the frequencies and the speeds of yellow light and blue compare? A The frequency of yellow light is greater than that of blue lightwhile the speed of blue light is faster than that of yellow light
B The frequency of blue light is greater than that of yellow lightwhile the speeds of both colors of light are the same.
C The frequency of blue light is greater than that of yellow , while the speed of yellow light is faster than that of blue light.
D The frequency of yellow light greater than that of blue light, while the speeds of both colors of light are the same I can’t put the whole test
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To answer these questions, we need to understand some basic concepts related to light and optics:
1. Image formation with a concave mirror:
When an object is placed between the focus point (F) and the mirror, the image formed will be virtual, upright, and larger than the object. So, the correct answer is C - The image appears taller and on the same side of the mirror.
2. Refraction of light when it moves from air to glass:
When light moves from one medium to another, such as from air to glass, it undergoes refraction. Refraction is the bending of light due to the difference in the speed of light in different mediums. So, the correct answer is A - Light bends due to the difference in the speed of light in air and glass.
3. Differences between light waves and sound waves:
Light waves and sound waves have several differences. One of the key differences is that light waves do not require a medium to propagate (travel), whereas sound waves do. So, the correct answer is B - Light waves do not require a medium to propagate.
4. Comparing frequencies and speeds of yellow light and blue light:
Different colors of light correspond to different frequencies of electromagnetic waves. Blue light has a higher frequency than yellow light. Additionally, the speed of light is constant in a given medium, so the speeds of both colors of light remain the same. Therefore, the correct answer is D - The frequency of yellow light is greater than that of blue light, while the speeds of both colors of light are the same.
Overall, the correct answers are:
1. C - The image appears taller and on the same side of the mirror.
2. A - Light bends due to the difference in the speed of light in air and glass.
3. B - Light waves do not require a medium to propagate.
4. D - The frequency of yellow light is greater than that of blue light, while the speeds of both colors of light are the same.