A complete change in the "laws" of physics!
This question really depends on what type of plane you mean, I will answer Commercial planes for everyday peopleThe speed of light is approximately 186,000 miles a second or 669600000 mph / 299,792,458 meters per second.A commercial plane like a 747 passenger plane that you might use to go on holiday travels at around 800mph. (top speed)669600000mph (speed of light) - 800mph (average plane speed) = 669599200.The speed light is roughly 669599200MPH faster.According to relativity, the speed of light is precisely the speed of light faster than a plane, to the observers in the plane. The above answer is only correct for an outside observer in a particular reference frame.
the speed of light decreases when it enter the plane and when it comes out of the plane it the speed again increases as there i sdifference in th refractive index and the interface of the glass plane is parallel
A mirror has no effect on the speed of light, but it has a radical effect on thevelocity of the wavefront, because it reverses the direction of the normalcomponent of the velocity.
A plane CAN'T travel at the speed of light.If a hypothetical super-spacecraft goes very close to the speed of light, and a beam of light is emitted from the spacecraft in the "forward" direction, the speed of the beam of light from the spacecraft would be measured to be the so-called "speed of light", i.e., 300 million meters per second. Note that the speed of this beam of light, as measured from Earth, would ALSO be 300 million meters per second. This seems weird, or even impossible, but it has been confirmed by the famous Michelson-Morley experiment, and explained by the Special Theory of Relativity.
The answer is NO. The speed of light is constant in our space-time from all reference frames. This means that going faster than the speed of light is not possible. Within a moving reference "plane", you would still see light travel across the interior, travelling at the standard rate of 300,000 km/sec. For an observer outside the plane, the speed would still appear as that constant due to time dilation.(see related link)
There isn't one.
This has not happened yet. It is usually believed that travelling faster than the speed of light is not possible.
The speed of light is faster than the speed of sound. This means that light waves, carrying visual information, will reach your eyes before sound waves reach your ears. This is why you see the fighter plane first before hearing it.
99.995 %
speed of light
No planes are faster than light.
As soon as the plane speeds up to go faster than sound, it may generate a 'sonic boom', which continues to sweep over the ground wherever the plane flies. Faster than that, there's no particular magic speed at which anything new suddenly magically happens. No aircraft, balloon, rocket ship, bullet, or anything else can fly faster than the speed of light.