Any angle larger that 90 degrees and less than 180 degrees is obtuse.
The complement is (90 - the angle) or: how much you have to add to the angle to make 90 degrees.(90 - 72.354) = 17.646 degrees.
less than 90 degrees
90
It is 90 degrees
Clear glass does refract light when light passes from another medium like water to clear glass. But there is an exception. If the ray of light were to pass through water and hit the clear glass straight or at 90 Degrees to the surface, then clear glass does not refract the light.
Yes, light will refract when shone at a 90-degree angle underwater. The light will bend due to the change in speed as it travels between mediums with different refractive indexes, causing the beam to change direction.
Periscopes work by reflecting light, not refracting it. Light enters the top of the periscope and is reflected through 90 degrees by either a plane mirror or a right angled prism (TIR) and travels down the tube where it is reflected again along the eyepiece to the eye.
A right angle is 90 degrees
90 Degrees
Any angle larger that 90 degrees and less than 180 degrees is obtuse.
Light crosses a boundary but does not refract when it enters the medium perpendicular to the surface. In this scenario, there is no change in the speed of light, so refraction does not occur. This is known as normal incidence.
90 degrees Fahrenheit is equal to 32.22 degrees Celsius.
yes
The complement is (90 - the angle) or: how much you have to add to the angle to make 90 degrees.(90 - 72.354) = 17.646 degrees.
less than 90 degrees
90 degrees