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3 years ago

Difference between velocity ratio and efficiency

Physics

1 answer:

Naddik [55]3 years ago

5 0

Explanation:

Velocity ratio of simple machine is the ratio of distance travelled by effort to the distance travelled by load in the machine. The efficiency of a simple machine is defined as the ratio of useful work done by machine (output work) to the total work put into the machine (input work).

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A light ray incident from medium 1 to medium 2, where n1>n2. When the incident angle exceed the critical angle ac, the refrac

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Explanation:

(a)

Critical angle is the angle at the angle of refraction is 90°. After the critical angle, no refraction takes place.

Using Snell's law as:

$n_1\times {sin\theta_i}={n_2}\times{sin\theta_r}$

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The formula for the calculation of critical angle is:

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${\theta_{critical}}$ is the critical angle

(b)

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3 years ago

Difference between velocity ratio and efficiency​

Difference between velocity ratio and efficiency