Question

** Alpha Ltd, bought a
machine on 1st August,
2017 for 1,20,000. It
bought further machinery
on 1st July, 2018 for
40,000 and for 30,000 on
1st January, 2019. On 1st
April, 2019, 2/5 of
machinery bought in 2017
was sold at loss of
10,000.
Prepare Machinery A/C
for 3 years if depreciation
is charged @10% p.a. on
reducing balance method
and books are closed on
31st March each year.​

Answer 1

Answer:

Fermat’s Theorem

The principle of least time: Light always takes the quickest path between any two points (which may not be the shortest path).

Rectilinear propagation of light and the law of reflection [∠i=∠r] can be validated by Fermat’s principle of least time.

Plane mirror

Any flat and polished surface that has almost no irregularities on its surface that reflect light is called as a plane mirror.

Characteristics of images

Images can be real or virtual, erect or inverted, magnified or diminished. A real ima