A radar transmitter Z is fixed to a reference frame S' that is moving to the right
Question:
A radar transmitter Z is fixed to a reference frame S' that is moving to the right with speed v relative to reference frame S (Figure). A mechanical timer (essentially a clock) in frame S', having a period 16 (measured in S'), causes transmitter T to emit timed radar pulses, which travel at the speed of light and are received by R, a receiver fixed in frame S.
(a) What is the period r of the timer as detected by observer A, who is fixed in frame S?
(b) Show that at receiver R the time interval between pulses arriving from T is not τ or τ0, but τ R = τ0 ?? c + v /c - v
(c) Explain why receiver R and same reference frame, measure observer A, who are in a different period for the transmitter.
1 V
Step by Step Answer:
a Using Eq 377 we expect the dilated time intervals to be To vc TYT b We ...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
Using a few basic physics principles, you can impress your friends with a trick that makes a bottle disappear. For this experiment, you will need a mini plastic bottle, glycerin, a glass, and a funnel. First, open the bottle and pour some glycerin into it, then close the bottle tightly. Next, pour some water into the glass using a funnel. Place the mini bottle into the glass of water and it will look normal. This is because light travels through air faster than it travels through the glass and water, allowing our eyes to see the bottle inside the glass. However, when you fill the mini bottle with more glycerin, and pour glycerin into the glass, then put the glycerin filled bottle into the glass with glycerin in it. Half of the bottle that is submerged in the glycerin will become invisible as the light travels through glass and glycerin at the same speed, thus it does not bend and no refraction takes place, making the bottle invisible. This happens because both glass and glycerin have almost the same refractive index, which causes the speed of light to be the same in both mediums, causing no bending of light and making the bottle disappear.
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