If light travels from oil (slower medium) to water (faster medium) at an angle, what happens to the direction of the light ray in water with respect to normal?A. It moves away from the normal. B. It moves toward the normal.
C. It will move along the normal. D. It will move perpendicular to the normal.
E. It stops traveling.

Answers

Answer 1

Answer: If light travels from oil to water at an angle, what happens to the direction of the light ray in water with respect to the normal, is it moves away from the normal.

Answer 2

Answer:

Answer:

to shorten the other answer...its A

Explanation:

Related Questions

Your grandmother in Ireland sends you her favorite cookie recipe. Her instructions say to bake the cookies at190.5°C. To what Fahrenheit temperature would you set the oven to bake the cookies?
Which of the following variables do you need to know in order to calculate the partial pressure of a gas? (We are going to ignore water vapor here.) Check all that apply. a. the volume of the container that the gas is in b. the percentage of the gas c. the percentage of the other gases that comprise the atmosphere d. the total pressure in the atmosphere
What would be the meaning of a nonzero y intercept to a graph of total mass versus volume?
Which term defines the process of a wave bending as it enters a new medium?A. reflection B. refraction C. destructive bending D. constructive bending
A car climbs 10.0 kilometers up a hill that inclines 8.0 degrees. What is the car's vertical displacement?

Compute the resistance in ohms of a copper block 5.0 cm long and 0.10 cm2 in cross-sectional area. (ρ = 1.77 × 10-6 ohm-cm)

Answers

R=ρ l/a
l=5 cm
a=0.10 cm²
ρ=1.77×10∧-6 Ωcm
R=(1.77×10∧-6) ×5/0.10
=8.85 ×10∧-5 Ω

resistance is directly proportional to length and inversly proportional to area of cross section is given by above equation

What kinds of telescopes are used to measure parallax

Answers

Hipparcos is used to measure parallax

An optical telescope is an instrument that collects and _____.A. focuses light from very small objects

B. focuses light from distant objects

C. reflects light from distant objects

D. stores heat from distant objects

Answers

Answer: The correct answer is option (B)

Explanation:

Telescope is an optical device which is designed to make distant object appear nearer. It contains combination of lenses and mirrors which collects the light rays and focus them as the as magnified image.

An optical telescope is a telescope which is used to gather and focus light from visible region of the electromagnetic spectrum to form a magnified image or a photograph of distant objects .This image can be seen by the observer.

Hence ,the correct answer is option(B).

An optical telescope is an instrument that collects
and focuses light from distant objects

A standard light bulb emits light rays in _________ directions.

Answers

Omni-directional. It means all directional.

Which device is using a motor?A water heater creates heat energy from electric energy.

A waterfall rotates a waterwheel to turn an axle.

A body massager uses electric energy to move back and forth.

A solar charger creates electric energy from the Sun.

Answers

Out of all the options, only body massager which uses electric energy to move back and forth is using motor here. It is because a motor converts electrical energy to Mechanical energy and only massager obeys it among all the options.

In short, Your Answer would be Option C

Hope this helps!

Answer: C.

A body massager uses electric energy to move back and forth.

Explanation:

The earth has a downward-directed electric field near its surface of about 150 N>C. If a raindrop with a diameter of 0.020 mm is suspended, motionless, in this field, how many excess electrons must it have on its surface?

Answers

Answer:

$Q = 2.74 * 10^(-13) C$

Explanation:

A rain drop has diameter given as

$d = 0.020 mm$

so the radius of the rain drop will be

$R = 0.010 mm$

now the volume of the rain drop is given as

$V = (4)/(3)\pi R^3$

$V = (4)/(3)\pi(0.010* 10^(-3))^3$

$V = 4.19 * 10^(-15) m^3$

now weight of the rain drop is given as

$W = \rho V g$

$W = (1000)(4.19 * 10^(-15))(9.81)$

$W = 4.11 * 10^(-11) N$

now this weight of the rain drop is counterbalanced by force due to electric field

so we have

$QE = W$

$Q = (W)/(E)$

$Q = (4.11 * 10^(-11))/(150)$

$Q = 2.74 * 10^(-13) C$

Final answer:

To determine the number of excess electrons on the surface of the raindrop, we can use the formula: mdrop = qeE. The electric field near the Earth's surface is given as 150 N/C. The mass of the raindrop can be calculated using its diameter.

Explanation:

To determine the number of excess electrons on the surface of the raindrop, we can use the formula:
mdrop = qeE

The electric field near the Earth's surface is given as 150 N/C. The mass of the raindrop can be calculated using its diameter. Once we have the mass, we can solve for the charge (qe) to find the number of excess electrons on its surface.

Let me calculate that for you.

Learn more about Excess electrons on a raindrop's surface here:

brainly.com/question/13274362

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