The phenomenon that is observed when an incident ray travelling in a slower medium strikes the boundary of a faster medium with an angle greater than the critical angle is known as total internal reflection.
Total internal reflection results in the the ray being reflected within the medium, instead of leaving it after undergoing diffraction. This phenomenon is the working principle of optical fibers.
Answer:
7. the ball with a mass of 8.0kg
8.1225 kg
9.4.2 kg-m/sec
10.15m/sec
11.0.001kgm/sec
Answer:
The best answer would be D
Explanation:
This would be best because if you sketch about an object or thing you are making it can help you better picture what you are making or someone else therefore the answer is D
Answer:
The coefficient of friction is 0.56
Explanation:
It is given that,
Mass of the automobile, m = 1400 kg
Speed of the automobile, v = 23 m/s
Radius of the track, r = 95 m
The automobile is moving in a circular track. The centripetal force is given by :
............(1)
Frictional force is given by :
...................(2)
= coefficient of friction
g = acceleration due to gravity
From equation (1) and (2), we get :
So, the coefficient of friction is 0.56. Hence, this is the required solution.
