Answer:
All of the following are true EXCEPT, the angle of refraction is 30 degrees
Explanation:
It is given that,
The index of refraction of the water is 1.33 and the angle of incidence is 30 degrees. We know that when a ray of white light moves through the air and strikes the surface of water in a beaker, refraction occurs. Let r is the angle of refraction. It can be calculated using Snell's law as :
So, the angle of refraction is 22.08 degrees.
According to the law of reflection, the angle of incidence is equal to the angle of reflection. Since, it is incident at an angle of 30 degrees, so the angle of reflection will be 30 degrees. Also, total internal reflection will result, depending on the critical angle.
So, the wrong statement is the angle of refraction is 30 degrees. It is equal to 22.08 degrees.
Inner planets are far warmer than outer planets. Due to distant of the sun
As the planets distant from the sun. The colder the get due to distance.
Answer: D
Explanation: The kinetic energy would become Zero.
According to conservative of energy, the total energy is equal to maximum K.E plus maximum P.E.
As the object comes to rest the potential energy will be maximum, and Kinetic energy becomes zero.