Q: Total internal reflection is the phenomenon which occurs when a propagated wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. If the refractive index is lower on the other side of the boundary and the incident angle is greater than the critical angle, the wave cannot pass through and is entirely reflected. The critical angle is the angle of incidence above which the total internal reflection occurs. This is particularly common as an optical phenomenon, where light waves are involved, but it occurs with many types of waves, such as electromagnetic waves in general or sound waves. When a wave reaches a boundary between different materials with different refractive indices, the wave will in general be partially refracted at the boundary surface, and partially reflected. However, if the angle of incidence is greater (i.e. the direction of propagation is closer to being parallel to the boundary) than the critical angle -- the angle of incidence at which light is refracted such that it travels along the boundary -- then the wave will not cross the boundary, but will instead be totally reflected back internally. This can only occur when the wave in a medium with a higher refractive index (n) reaches a boundary with a medium of lower refractive index (n). For example, it will occur with light reaching air from glass, but not when reaching glass from air.
Can we conclude that does total internal reflection occur at the critical angle?
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A: no
Creme de menthe (pronounced (km d mt), French for ''mint cream'') is a sweet, mint-flavored alcoholic beverage. Its flavor primarily derives from Corsican mint or dried peppermint. It is available commercially in a colorless version (called ''white'') and a green version (colored by the mint leaves, or by added coloring if made from extract instead of leaves). Both varieties have similar flavor and are interchangeable in recipes, except where color is important.
does creme de menthe have alcohol in it?
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Answer: yes
An ironclad is a steam-propelled warship protected by iron or steel armor plates used in the early part of the second half of the 19th century. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, Gloire, was launched by the French Navy in November 1859. The British Admiralty had been considering armored warships since 1856 and prepared a draft design for an armored corvette in 1857; in early 1859 the Royal Navy started building two iron-hulled armored frigates, and by 1861 had made the decision to move to an all-armored battle fleet. After the first clashes of ironclads (both with wooden ships and with one another) took place in 1862 during the American Civil War, it became clear that the ironclad had replaced the unarmored ship of the line as the most powerful warship afloat. This type of ship would come to be very successful in the American Civil War.

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was the virginia the first ever ironclad warship?

A: no
Problem: Text: A pinky ring is a ring worn on the little finger of either hand, which is also called the ''fifth finger''.

Question: can you wear a ring on your pinky?

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A: yes
IN: Is it true that is the supraspinatus tendon part of the rotator cuff?

The tendons of the rotator cuff, not the muscles, are most commonly involved, and of the four, the supraspinatus is most frequently affected, as it passes below the acromion. The role of the supraspinatus is to resist downward motion. The supraspinatus resists downward motion while the shoulder is relaxed as well as when carrying weight. Such a tear usually occurs at its point of insertion onto the humeral head at the greater tubercle. Even though the supraspinatus is the most commonly injured muscle of the four muscles in the rotator cuff, the other three muscles that comprise the rotator cuff, the infraspinatus, teres minor, and subscapularis, may also be injured.

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OUT: yes
IN: Is it true that are they making a season 4 of trollhunters?

The first two episodes of the series premiered on October 8, 2016, at the New York Comic Con. The first season was released worldwide on Netflix on December 23, 2016. The second season premiered on December 15, 2017, and the third and final season premiered on May 25, 2018.

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- no
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OUT:
no