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iloveannaw

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## Homework Statement

Given the distance from the sun to Earth x

_{E}, the distance from the sun to venus x

_{V}and the mass of the sun m calculate the time delay due to gravity in receiving a radio signal sent from Earth to venus (and reflected back). Ignore the gravity fields of venus and earth. Venus lies directly between Earth and Sun!

## Homework Equations

from lectures:

[itex]t' = (1 + \frac{\Delta\phi}{c^{2}}) t[/itex]

[itex]\Delta\phi = \frac{-Gm}{r}[/itex]

## The Attempt at a Solution

proper time as recorded by distant observer =

[itex] t_{0} = \frac{x_{E}-x_{V}}{c}[/itex],

this is the time for a one way trip from Earth to Venus.

I think that the time delay is caused by the slowing of time due to change in grav. potential but I don't know how to calculate this.

This isn't homework just self study, thanks

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