The kinetic energy of an object is directly proportional to its mass, and to the square of its velocity.
Measurements Number of significant digits in them
A.)0.3 -------------> 2
B.)8.0 -------------> 1
C.)8.09 -------------> 3
D.)13.60 -------------> 3
E.)408.03 -------------> 5
Hope this helps!
Answer
given,
refractive index of cladding = 1.46
refractive index of inner core = 1.48
largest angle between light ray = ?
critical angle,
![\theta_c = sin^{-1}(\dfrac{1.46}{1.48})](https://tex.z-dn.net/?f=%5Ctheta_c%20%3D%20sin%5E%7B-1%7D%28%5Cdfrac%7B1.46%7D%7B1.48%7D%29)
![\theta_c =80.6^0](https://tex.z-dn.net/?f=%5Ctheta_c%20%3D80.6%5E0)
![\theta_c =90^0 - 80.6^0= 9.4^0](https://tex.z-dn.net/?f=%5Ctheta_c%20%3D90%5E0%20-%2080.6%5E0%3D%209.4%5E0)
According to Snell's law
![n_1 sin\theta_i= n_2 sin \theta_r](https://tex.z-dn.net/?f=n_1%20sin%5Ctheta_i%3D%20n_2%20sin%20%5Ctheta_r)
![sin\theta_i = 1.48\times sin 9.4^0](https://tex.z-dn.net/?f=sin%5Ctheta_i%20%3D%201.48%5Ctimes%20sin%209.4%5E0)
![\theta_i = sin^{-1}{0.242}](https://tex.z-dn.net/?f=%5Ctheta_i%20%3D%20sin%5E%7B-1%7D%7B0.242%7D)
![\theta_i =14^0](https://tex.z-dn.net/?f=%5Ctheta_i%20%3D14%5E0)
assuming angle of incident be equal to 50°
then Largest angle
=50° - 14° = 36°
Answer:Although the crust is solid, the core of the Earth is surrounded by a mixture of molten iron and nickle. The magnetic field of Earth is caused by currents of electricity that flow in the molten core. These currents are hundreds of miles wide and flow at thousands of miles per hour as the earth rotates. hope it helped in someway ig idk
Explanation: