3 years ago

A scientist must only base his or her conclusions on observable evidence from investigation

Physics

1 answer:

Nezavi [6.7K]3 years ago

8 0

is this a true of false cuz if so this it true

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The words can only be used onece. Use the words to complete the sentences below: Switch, break, on, complete, electricity, bulb,

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A circuit which has a battery in it will not allow electricity to flow through it. A device called a switch can be used to complete a circuit so that other devices can be switched on or off.

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A 4.0 kg block is resting on a rough horizontal table. The

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Light rays in a material with index of refrection 1.29 1.29 can undergo total internal reflection when they strike the interface

deff fn [24]

Answer:

The second material's index of refraction is 1.17.

Explanation:

Given that,

Refractive index of the material, n = 1.29

Critical angle is 65.9 degrees.

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$n_1\sin \theta_c=n_2\sin (90)\\\\n_2=n_1\sin \theta_c\\\\n_2=1.29\times \sin (65.9)\\\\n_2=1.17$