1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
poizon [28]
3 years ago
13

Define the refraction index of a

Physics
1 answer:
Andrews [41]3 years ago
6 0

Answer:

see below

Explanation:

refractive index of a medium is defined as the ratio of the speed of light in vacuum to the speed of light in medium

critical angle of glass is 42 means that if the angle of incidence inside the glass is 42 degrees, then the angle of refraction in the optically less dense medium will be 90 degrees

hope this helps

You might be interested in
Calculate the de broglie wavelength (in picometers) of a hydrogen atom traveling at 440 m/s.
Aleonysh [2.5K]

De broglie wavelength, \lambda = \frac{h}{mv}, where h is the Planck's constant,  m is the mass and v is the velocity.

h = 6.63*10^{-34}

Mass of hydrogen atom,  m = 1.67*10^{-27}kg

v = 440 m/s

Substituting

   Wavelength \lambda = \frac{h}{mv} = \frac{6.63*10^{-34}}{1.67*10^{-27}*440} = 0.902 *10^{-9}m = 902 *10^{-12}m

1 pm = 10^{-12}m\\ \\ So , \lambda =902 pm

So  the de broglie wavelength (in picometers) of a hydrogen atom traveling at 440 m/s is 902 pm

7 0
3 years ago
The typical unit for a period used with Kepler's third law is
ollegr [7]
Well, if you're using the law to work with periods of Earth satellites,
then the most convenient unit is going to be 'hours' for the largest
orbits, or 'minutes' for the LEOs.

But if you're using it to work with periods of planets, asteroids, or
comets, then you'd be working in days or years.
6 0
3 years ago
Suppose that a freely falling object were somehow equipped with an odometer. Would the readings of distance fallen each second i
maks197457 [2]

Answer:

1  greater distances fallen in successive seconds

Explanation:

When a body falls freely it is subjected to the action of the force of gravity, which gives an acceleration of 9.8 m / s2, consequently, we are in an accelerated movement

If we use the kinematic formula we can find the position of the body

       Y = Vo t + ½ to t2

Where the initial velocity is zero or constant and the acceleration is the acceleration of gravity

Y = - ½ g t2 = - ½ 9.8 t2 = -4.9 t2

Let's look for the position for successive times

t (s)      Y (m)

  1          -4.9

  2         -19.6

   3        -43.2

The sign indicates that the positive sense is up

It can be clearly seen that the distance is greatly increased every second that passes

3 0
3 years ago
How long does it take to fall from 5000 feet?
WINSTONCH [101]
It depends on your weight, your hieght, and how fast you are falling
4 0
4 years ago
In a closed system, as kinetic energy increases, what happens to potential energy?
kupik [55]
<h2>Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity.</h2>
8 0
3 years ago
Other questions:
  • Nuclear binding energy is necessary to overcome which of the following? Einstein's mass defect
    14·1 answer
  • A golf ball and bowling ball are rolling at the same speed. Which has the greater momentum?
    5·2 answers
  • What layer of the atmosphere is made mostly of hydrogen and helium?
    8·1 answer
  • Why is electrical wiring usually made from copper ?
    14·1 answer
  • Which of these experiments would make use of qualitative data?
    15·2 answers
  • Which of the following is a nonrenewable resource? a. hydropower b. biomass c. geothermal power d. coal
    7·2 answers
  • Which event best helped becquerel determine uranium radiate rays?
    13·1 answer
  • In order to produce a change in motion, a force must be a(n)…?
    5·1 answer
  • A cinder block is sitting on a platform 10 m high. It has a mass of 25 Kg. What is the potential energy
    15·1 answer
  • A car is moving at 20 m/s when the driver sees a stop sign and comes to rest at 65m. How long does the car take to come to rest?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!