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
Anni [7]
3 years ago
15

The angle between incident ray and reflected ray is 80 degrees. What is the value of angle of incidence?

Physics
1 answer:
saul85 [17]3 years ago
8 0

Answer:

The angle of incident ray is 40°.

Explanation:

Given that the angle of incident and reflected ray are the same. In this question, we had given that both angles added up will gives you 80° so you have to divide it by 2 :

incident + reflected = 80°

Let incident = reflected = θ

θ + θ = 80°

2θ = 80°

θ = 80° ÷ 2

= 40°

You might be interested in
your friend sit in a sked in the snow. if you apply a force of 120 N to them, they have an acceleration of 1.3 m/s2. what is the
levacccp [35]
Need to know the equation for force
F=MA
F is force
M is mass- we need to know the mass
A is acceleration
use "x" for mass
120 N= 1.3x
divide 1.3 in both side
kg unit for mass
X=92.31 kg 
or 
mass = 92.31 kg
Hope this helps
7 0
3 years ago
Which organelle is most like a factory delivery driver?
Fantom [35]
The answer is B, or endoplasmic reticulum.
7 0
3 years ago
Read 2 more answers
Which of the following metals require ultraviolet light to exhibit the photoelectric effect?The options available: a. Cs, work f
Eddi Din [679]

Answer:

b. AG, work function=4.74eV

Explanation:

Ultraviolet light starts at the end of the visible light spectrum, where violet light ends:

\lambda=380 nm =3.8\cdot 10^{-7}m (wavelength of lowest-energy ultraviolet light)

So, the lowest energy of ultraviolet light can be found by using the formula

E=\frac{hc}{\lambda}

where

h is the Planck constant

c is the speed of light

Substituting,

E=\frac{(6.63\cdot 10^{-34} Js)(3\cdot 10^8 m/s)}{3.8\cdot 10^{-7} m}=5.23\cdot 10^{-19}J

And keeping in mind that

1 eV = 1.6\cdot 10^{-19}J

This energy converted into electronvolts is

E=\frac{5.23\cdot 10^{-19} J}{1.6\cdot 10^{-19} J/eV}=3.27 eV

The work function of a metal is the minimum energy needed to extract a photoelectron from the surface of the metal. Therefore, the metals that exhibit photoelectric effect are the ones whose work function is larger than the energy we found previously, so:

b. AG, work function=4.74eV

Because for all the other metals, visible light will be enough to extract photoelectrons.

7 0
3 years ago
What is the definition of energy
Contact [7]
Energy is the ability to do work.<span />
5 0
3 years ago
Read 2 more answers
Car is travelling 100 km/h west and comes to a stop in 3 min. what is the car's<br>acceleration?​
Mariulka [41]

Explanation:

acceleration equation is change in velocity/time

so 100/3 will be 33.3km

7 0
3 years ago
Other questions:
  • Discuss the correlation or connection between stars with a higher mass and the amount of fuel they have to work with
    8·1 answer
  • A table tennis ball with a mass of 0.003 kg and a soccer ball with a mass of 0.43 kg or both Serta name motion at 16 M/S calcula
    12·2 answers
  • A current carrying wire wrapped around an iron ore is called a
    6·1 answer
  • Many web sites describe how to add wires to your clothing to keep you warm while riding your motorcycle. The wires are added to
    15·1 answer
  • Read the given list of organisms.
    5·2 answers
  • It is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hook
    7·1 answer
  • The most common patterns of minority treatment include assimilation, segregation, subjugation, and legal protection.
    6·2 answers
  • The pictures shows what a student observed when he looked through a hand lens at a penny.
    5·2 answers
  • new york, Vermont, Massachusetts are specifically what region of the united states? and what two wind directions do you combine?
    14·1 answer
  • A planet has a circular orbit around a star. It is a distance of 53,000,000 km from the centre of the star.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!