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
tiny-mole [99]
3 years ago
5

A ray of white light moves through the air and strikes the surface of water in a beaker. The index of refraction of the water is

1.33 and the angle of incidence is 30 degrees. All of the following are true EXCEPT:
I. the angle of reflection is 30 degrees
II. the angle of refraction is 30 degrees
III. total internal reflection will result, depending on the critical angle
Physics
1 answer:
Naily [24]3 years ago
3 0

Answer:

except ii and iii

Explanation:

The angle of reflection is the angle to the normal the white rays strikes the water surface and it is the incidence angle. Since the white light is moving from less dense medium to a denser medium or a medium with a higher refractive index; the angle of refraction will be less than 30 degrees. Total internal reflection cannot occur because the white light is traveling from a less dense medium to a denser medium.

You might be interested in
Bob is pushing a box across the floor at a constant speed of 1.2 m/s, applying a horizontal force whose magnitude is 75 N. Alice
Nadya [2.5K]

Answer:75 N

Explanation:

Given

Bob is pushing the box with a force of 75 N with constant speed. Constant speed indicates that net force on the block is zero i.e. friction force is balancing the applied force.

so friction force f=75 N

If Alice is pushing an identical box with constant speed so net force acting on box must be equal to an applied force.

As the friction force is 75 N so Alice must be applying a force of 75 N  

6 0
3 years ago
Does a five pound ball weigh more or less 40000 miles above sea level​
Ann [662]

It would weigh less bc the higher you are the less gravity there is.

5 0
2 years ago
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.13 s. W
vitfil [10]

Answer:

Part a)

T = 0.52 s

Part b)

f = 1.92 Hz

Part c)

speed = 3.65 m/s

Explanation:

As we know that the particle move from its maximum displacement to its mean position in t = 0.13 s

so total time period of the particle is given as

T = 4\times 0.13 = 0.52 s

now we have

Part a)

T = time to complete one oscillation

so here it will move to and fro for one complete oscillation

so T = 0.52 s

Part b)

As we know that frequency and time period related to each other as

f = \frac{1}{T}

f = \frac{1}{0.52}

f = 1.92 Hz

Part c)

As we know that

wavelength = 1.9 m

frequency = 1.92 Hz

so wave speed is given as

speed = wavelength \times frequency

speed = 1.92 \times 1.9

speed = 3.65 m/s

4 0
3 years ago
Oil _____.
atroni [7]
Oil <span>must be mined from underground 

Oil is NOT a renewable resource
Oil does NOT release more toxins than coal
Oil also is NOT easily replenished

</span>
4 0
3 years ago
Read 2 more answers
Which optical devices spread light apart?
Harman [31]

\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the Optical Devices.

Now basically here the devices that can spread light over apart are the CONCAVE LENS and Convex mirror.

so the Answer is

C. B and D

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which two biomes have little precipitation?
    8·1 answer
  • Identify the following as a suspension or a colloid. sand in water
    13·2 answers
  • Originally 21 acts were tentatively scheduled to perform at the arena; only 10 have been booked. What is the shortfall if the ot
    5·1 answer
  • Connie teaches her children to call adults "sir" and "ma'am" and to say "please" and "thank you." These rituals are known as
    5·1 answer
  • Two waves meet and interfere
    5·1 answer
  • On Earth, Yancy hits a golf ball as hard as he can. The golf ball flies 150 meters before hitting the ground. About how far woul
    14·2 answers
  • What is the best explanation for the observation that the electric charge on the stem became positive as the charged bee approac
    7·1 answer
  • If two objects are the
    5·1 answer
  • A car starts from rest and after 5.5 seconds it is moving at 30 m/s. What is the value of t? Use one of the following to find th
    10·1 answer
  • Explain String Theory
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!