Quiz about RI

Question 1

Using Ohm's Law Triangle, what is the formula to calculate the voltage, V?

Accepted Answer

$$V\ =\ I\ imes R$$

Answer

$$V\ =\ \frac{I}{R}$$

Answer

$$V\ =\ \frac{R}{I}$$

Question 2

Using Ohm's Law Triangle, what is the formula to calculate the resistance, R?

Accepted Answer

$$R\ =\ \frac{V}{I}$$

Answer

$$R\ =\ \frac{I}{V}$$

Answer

$$R\ =\ V\ imes\ I$$

Question 3

is...

Accepted Answer

moving electrons

Answer

moving protons

Answer

measured in volts

Answer

measured in ohms

Question 4

is simply defined as...

Accepted Answer

what 'pushes' electrons

Answer

what 'stops' electrons

Answer

moving electrons

Question 5

Resistance is...

Accepted Answer

what "slows down" electrons

Answer

what "speeds up" electrons

Answer

moving electrons

Answer

what "pushes" electrons

Question 6

This instrument is used to measure

Accepted Answer

resistance

Answer

electric current

Answer

voltage

Question 7

What is the refractive index (RI) of a medium?

Accepted Answer

A) The ratio of the speed of light in vacuum to the speed of light in the medium

Answer

B) The ratio of the speed of sound in air to the speed of sound in the medium

Answer

C) The ratio of the density of the medium to the density of water

Answer

D) The ratio of the frequency of light in vacuum to the frequency of light in the medium

Question 8

Which of the following is true about the refractive index (RI)?

Accepted Answer

A) It is always greater than or equal to 1

Answer

B) It is always less than 1

Answer

C) It can be negative

Answer

D) It is always equal to 1

Question 9

If the refractive index (RI) of water is 1.33, what does this imply?

Accepted Answer

C) Light travels 1.33 times faster in vacuum than in water

Answer

A) Light travels 1.33 times faster in water than in vacuum

Answer

B) Light travels 1.33 times slower in water than in vacuum

Answer

D) Light travels 1.33 times slower in vacuum than in water

Question 10

Which experiment can be used to measure the refractive index (RI) of a material?

Accepted Answer

C) Snell's law experiment

Answer

A) Young's double-slit experiment

Answer

B) Michelson-Morley experiment

Answer

D) Rutherford's gold foil experiment

Question 11

How does the refractive index (RI) affect the bending of light?

Accepted Answer

A) Higher RI means light bends more towards the normal

Answer

B) Higher RI means light bends away from the normal

Answer

C) Higher RI means light does not bend

Answer

D) Higher RI means light bends parallel to the surface

Question 12

What is the relationship between refractive index (RI) and critical angle?

Accepted Answer

A) Higher RI results in a smaller critical angle

Answer

B) Higher RI results in a larger critical angle

Answer

C) RI does not affect the critical angle

Answer

D) RI is equal to the critical angle

Question 13

Which of the following materials has the highest refractive index (RI)?

Accepted Answer

C) Diamond

Answer

A) Air

Answer

B) Water

Answer

D) Glass

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