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liraira [26]
3 years ago
7

A light wave travels through water (n=1.33) at an angle of 35º. What angle

Physics
2 answers:
san4es73 [151]3 years ago
6 0

Answer:

49.7^{\circ}

Explanation:

We can solve the problem by using Snell's law:

n_1 sin \theta_1 = n_2 sin \theta_2

where

n1 = 1.33 is the index of refraction of the first medium (water)

n2 = 1.00 is the index of refraction of the second medium (air)

\theta_1 = 35^{\circ} is the angle of incidence of the wave in water

\theta_2 is the angle of refraction of the wave in air

Solving for the angle of refraction,

sin \theta_2 = \frac{n_1 sin \theta_1}{n_2}=\frac{(1.33) sin 35^{\circ}}{1.00}=0.763\\\theta_2 = sin^{-1} (0.763)=49.7^{\circ}

fiasKO [112]3 years ago
3 0

Answer:

49.7

Explanation:

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Calculate the translational speed of a cylinder when it reaches the foot of an incline 7.05 mm high. Assume it starts from rest
mestny [16]

Height is 7.05 m and not 7.05 mm

Answer:

9.603 m/s

Explanation:

We are dealing with rotation, so velocity of centre of mass is given by;

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Since it is rolled from the top to the bottom, at the top it will have potential energy(mgh) while at the bottom it will have kinetic energy (rotational plus translational kinetic energy).

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Formula for rotational and kinetic energy here are;

K.E_t = ½mv²

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Earlier, we saw that v_cm = Rω

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mgh = ½mv² + ½(½mR²)(v/R)²

This gives;

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6 0
3 years ago
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What are the characteristics of image when object is between f1 and 2f1 for concave lense?​
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Answer:

The required diagram is shown in the figure. When an object is placed in front of the convex lens, i.e., between 2F

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solution

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A scientist heats up a container full of neon gas. What will most likely happen to the container as the gas heats up?
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Since neon atoms move quickly, it would shrink.
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