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Chapter 36: Q. 4 (page 1058)

Firecrackers A and B are 600m apart. You are standing exactly halfway between them. Your lab partner is 300m on the other side of firecracker A. You see two flashes of light, from the two explosions, at exactly the same instant of time. Define event 1 to be 鈥渇irecracker A explodes鈥� and event 2 to be 鈥渇irecracker B explodes.鈥� According to your lab partner, based on measurements he or she makes, does event 1 occur before, after, or at the same time as event 2? Explain

Short Answer

Expert verified

Both event will occur simultaneously.

Step by step solution

01

Given information

We have given,

To me the both event will occur at distance =300m

Distance of event A form lab partner = 300m

We have to find the which event will occur first for the lab partner.

02

Simplify

Because the lab partner is at 300mdistance from the firecracker A and Firecrackers A and B are 300mapart for me.

Then, So the distance of fire cracker B from the lab partner is:

Distance=600m+300m=900m

By observation we can say that Due to large distance of event B from the lab partner, it may occur after event B.

Then, this concludes that lab partner sees event A occur first then event B.

But lab partner is smart enough to correct for the travel time of light.

Then, he conclude that the events occur at the same time .

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