Suppose that you are on a nearby star and look at the Solar System. You happen t

Question

Suppose that you are on a nearby star and look at the Solar System. You happen to see the Sun's brightness dimming as Jupiter transits across its disk. Given that Jupiter's diameter is about 10 times smaller than the Sun's diameter, how much fainter will the Sun become during this transit, compared to its normal brightness?

a. A factor 0.1 (so 10%). c. Only about one in a million.

b. A factor 0.01 (so 1%). d. There would be no effect on the Sun's brightness.

When a planet orbits a star, the star will also move in its own orbit. The star's orbit

a. is the same size as the planet's orbit.

b. is smaller than the planet's orbit by the ratio of the masses of planet and star.

c. is smaller in size than the planet's orbit and has a longer orbital period.

d. is generally more elliptical than the planet's orbit.

Einstein developed the theories of special relativity in the early part of the 20th century. List two consequences, or "properties" if you like, of the theory of special relativity that are quite different from the prediction of how things behave under Newton's laws of motion.

Explanation / Answer

1. {b} a factor of 0.01

Jupiter blocks about 1% of the Sun's disk, so there will be decrease in apparent brightness compared to normal brightness.

2.(c) smaller in size than the planet's orbit and has a longer orbital period.

Orbit size is inversely proportional to the mass of star.

Newton's law do not consider the loss of energy, or it is stick to conservation of energy.

Also the Newton's laws is valid only in inertial frame of reference.

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