Answer:
Angle and speed of wave
Explanation:
The two phenomena involved here are:
- Reflection: reflection occurs when a light wave bounces off the interface between two mediums, returning into the first medium, at a different angle
- Refraction: refraction occurs when a light wave passes through the interface between the two mediums, passing into the second medium, changing direction and speed
The coefficient of reflection tells what is the fraction of the wave that is reflected over the total; it is calculated as
where
are the index of refraction of the 1st and 2nd medium
are the angle between the ray of light and the normal to the interface in the 1st and 2nd medium
From the formula, we see that the % of wave that is reflected depends on the angle and the index of refraction. Moreover, the index of refraction is related to the speed of the wave by:
where c is the speed of light in a vacuum and v the speed of light in the medium; therefore, the correct answer is
Angle and speed of wave
Answer:
Gamma rays
Explanation:
Gamma rays have the highest frequency in the electro magnetic spectrum
Answer:
The Troposphere is the lowermost portion of Earth’s atmosphere. It is the densest layer of the atmosphere and contains approximately 75 percent of the mass of the atmosphere and almost all the water vapor and aerosol. The troposphere extends from the Earth’s surface up to the tropopause where the stratosphere begins.
Explanation:
The correct option is (b) Sea breeze
During the day, susan notices that the wind is blowing onshore at the beach called sea breeze.
What is sea breeze?
- Any wind that flows from a big body of water onto or onto a landmass is called a sea breeze or an onshore breeze.
- Sea breezes form as a result of changes in air pressure brought on by the different heat capacities of water and dry land. Sea breezes are therefore more confined than prevailing winds.
- A sea wind is frequently seen along coasts after sunrise because land warms up far more quickly than water does when exposed to solar radiation.
- The sea wind front is significant because it can serve as a catalyst for afternoon thunderstorms and provide welcome cooling along the coast.
Learn more about the sea breeze with the help of the given link:
brainly.com/question/13015619
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The statement (C) <span>The current carrying loop is able to turn because the magnetic force is always parallel to it.
In an electric motor the current do not reduce at any point. So, the (A) is also not correct.
The correct statement about an electric motor is (B),
</span><span>The current carrying loop is able to turn because the magnetic force is always at a right angle to it.</span>
