PHYS0003/PHYS1650 - Nature of the Universe
Solution of Assignment 4
Due date: 5:00pm, April 25, 2013
1. The relation between apparent magnitude and absolute magnitude is
m M = 5 log
D
.
10pc
(1)
Hence, B is
B = M + 2.85 log P
D
+ 2.85 log P
= m 5 log
10pc

PHYS0003/PHYS1650 - Nature of the Universe
Solution of Assignment 3
Due date: 5:00pm, November 15, 2012
1. (a) At Earths orbit, energy from the Sun is evenly spread through out
a spherical surface with a radius of 1AU Hence, the power per unit area
receiv

PHYS0003/PHYS1650 - Nature of the Universe
Solution of Assignment 1
Due date: 5:00pm, October 17, 2012
Give answers and explanations for the following questions.
1. (15 marks) (a) Using the data from the lecture note, what is the ratio of
the volumes of a