# What is 0 divided by 0?

Apr 28, 2018

not 0 not 1

#### Explanation:

the mass of a photon of light is 0 grams at rest and thus the photon has no mass. When a photon is released by a source it travels at the speed of light c approx ($3 \cdot {10}^{8}$) m/s.

at this speed the mass of the photon is calculated by the equation

m(o) = (m(i))/(sqrt(1-V^2/C^2)

m(i) mass at rest
m(o) mass at speed
hence the mass of a photon when moving is $\frac{0}{0}$

Gravity can only act on a mass. As light passes around a planet or star or gravitational body, it bends. This bending of light can only be caused if the photon has mass. Thus $\frac{0}{0}$ is not equal to 0.

Also look at the affect of light on what is called a light sail.

Apr 28, 2018

$\text{indeterminant}$

#### Explanation:

$\frac{0}{0} \text{ is not possible to evaluate and for this reason is}$
$\text{indeterminant}$

Apr 28, 2018

When you have a fraction, let say $\frac{20}{4}$ you find 5 as the result because 5 x denominator is the numerator ($5 \times 4 = 20$)
When you have $\frac{0}{0}$ whichever number $a$ you put as a result verifies the fraction because $0 \times a = 0$. For this reason it is imposible to determine the result. This is the reason because is called indeterminate