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What is the function of a sextant?
Sextant is used to measure the angle between any two visible objects.Its primary use is to determine the angle between a celestial object and the the horizon which is also know as objects altitude.
What is the difference between thread angle and lead angle also clear it from diagram?
A thread angle is the angle of the threads relative to the shank which is 60 degrees for unified screws The lead angle is the pitch of the screw divided by the circumference of the shank; it varies but is around 3 degrees
What is meant by the Angle of incidence and Angle of reflection?
The angle of incidence and reflection are reference to of a line normal or perpendicular to a surface. The incidence angle is the incoming ray angle relative to the normal line and the reflection is the outgoing angle relative to the normal line. Both angles are in the plane containing the normal line and the incidence ray.
What is the angle of incidence if a plane mirror has an angle of 20?
The answer depends on knowing what the plane mirror hhas a 20-degree angle relative to!
If angle x is a reflex angle then angle x lies between?
Then angle x is between 180 and 360 degrees
