Question

1. Questas. Multiple comanare On 1. In outer space there is no material to carry light; if there were, the sound would reach you before the light. can or page find beton NO 2. The explosion cannot occur in outer space; if it could, the faster-moving light would reach you before the sound. From the stands of a race track why do you notice smoke from the starter's gun before you hear it fire? 3. None of these 1. Sound has a much longer wavelength than light. 4. The explosion cannot occur in outer space; if it could, the sound would reach you before the light. 2. Smoke spreads out quickly. 3. The gun smokes before making sound. 5. In outer space there is no air to carry sound; if there were, the faster-moving light would reach you before the sound. 4. Light travels about a million times faster than sound in air. What is the law of reflection? 5. The response time of eyes is shorter than that of ears. 1. Reflection is not consistent from an irreg- ular surface. 2. A faster light in the media results in a larger reflective angle. If a bell rings inside a bell jar, we can no longer hear it when the air is pumped out, but we can still see it. What differences in the properties of sound and light does this indicate? 3. The angle of reflection equals the angle of incidence. 1. Light needs a material medium for its transmission, while sound does not. 4. The angle of refraction equals the angle of reflection. 2. The bell jar is a good light transmitter. 5. The critical angle is 90 degrees. 3. The bell jar is a good absorber of sound. 6. The angle of incidence equals the angle of refraction. 4. Sound needs a material medium for its transmission, while light does not. na tla 5. There is a frequency shift of sound waves when it passes through a vacuum. ecting surf an angle tegui. A nro at an of 10 mirro Ace. ntal espect to the What two physics mistakes occur in a science fiction movie that shows a distant explosion in outer space, where you see and hear the explosion at the same time?

Answer 1

gun before difference & speed of sound. We notice smoke from the starter's we hear it fire this is due to the Speed of eight is much much higher minon times faster than speed of sound. des correct Light travels about a mwon times faster than sound in der je. Ane: 2. When bell rings inside bell jar we can longer hear it When the air is pumped out. still see it this is because sound can't more without a medium but light without modium. but we can can nove Ane 4 is correct → Sound needs a matertial medium for its transmisson duine light doesn't. 3. When an explosion happens in outer space movies shows sound and ught at same time but it is incorrect. Because sounds needs medium to bard, as the our outer space there is no nudium sound can't travel a resut we can't hear it. If medium is present as speod of light is faster we will see it first Ane! is correct In outer space there is no air to carry sound if there were the faster moring light would reach us first. 42 The low of reflection states angle of reflection equals to the angle of incidence Ars . (3) is correct.