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
Blizzard [7]
2 years ago
9

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? Light is made up of extr

emely small particles. Particles that are emitted from a strip of metal are electrons. Shining light on a metal strip produces emissions. Energy of electrons depends on light’s frequency, not intensity.
Chemistry
2 answers:
Aliun [14]2 years ago
7 0

The correct answer is

Energy of electrons depends on light’s frequency, not intensity.

As per photoelectric effect, if we incident a light on metal surface it will results into emission of electron from it

if we increase the number of photons the number of electrons will increase however if we increase the frequency the number of photons will not increase

While if we increase frequency the energy of electrons will increase as

Energy of photon = Work function of metal + kinetic energy of electrons

Mice21 [21]2 years ago
4 0
Energy of electrons depends on light's frequency not intensity is the correct option.

Hope this helps, have a great day/night ahead!
You might be interested in
What do waves carry from place to place​
mario62 [17]

Answer:

Waves carry energy from place to place.

Explanation:

Some waves are used for mainly communication and phone signals. They help people get internet in the middle of nowhere if you are near an energy wave.

3 0
3 years ago
Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m
faust18 [17]

Answer:

56°

Explanation:

First calculate a:

a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}

The interplanar spacing can be calculated from:

d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}

The diffraction angle is determined from:

\sin \theta=\frac{n \lambda}{2 d_{111}}=\frac{1(0.1927)}{2(0.2035)}=0.476

Solve for \theta

\theta=\sin ^{-1}(0.476)=28^{\circ}

The diffraction angle is:

2 \theta=2\left(28^{\circ}\right)=56^{\circ}

4 0
3 years ago
(04.01 LC)
Marysya12 [62]

Answer:

Substance at the beginning of a reaction- reactant

Substance at the end of a reaction- product

Number placed before a compound in a chemical equation- stoichiometric coefficient

Explanation:

In a reaction equation, the species written on the left hand side of the equation are called the reactants.

The reactants combine to form the species on the right hand side of the reaction equation called products.

The stoichiometric coefficient is a number written before the formula of a compound in the reaction equation.

5 0
3 years ago
Can someone help.? thanks :)​
laila [671]

Answer:

  • <u>1. Equation: 2x  + 3 = 9x - 11</u>

<u></u>

  • <u>2. Each row has 2 chairs</u>

Explanation:

The variable x represents the number of chairs in each row.

<u />

<u>1. She can form 2 rows of a given length with 3 chairs left over.</u>

Thus, she has:

number of rows  number of chairs in      chairs             number of chairs

                             each row                       left over         she has

     2                        x                                    3                      2x + 3

<u>2.  She can form 9 rows of the same length if she gets 11 more chairs.</u>

That means that she is short in 11 chairs to have 9x chairs, or that she has 11 less chairs than 9x chairs. Then she has:

  • 9x - 11

<u>3. Equation:</u>

Then, number of chairs she has is 2x + 3 and, also, 9x - 11, which allows to set the equation:

  • 2x + 3 = 9x  -11

<u>4. Solve the equation:</u>

  • 9x - 2x = 3 + 11
  • 7x = 14
  • x = 2

Therefore, each row has 2 chairs, and she has 2x + 3 = 4 + 3 = 7 chairs.

4 0
3 years ago
How many neutrons are there in 186W
artcher [175]

Question:

How many neutrons are there in 186W

Answer:

112

hope it helps (^^)

# Cary on learning

7 0
2 years ago
Read 2 more answers
Other questions:
  • A motorcycle travels 823 meters in 20 seconds. What is the average speed? _____ m/s
    15·1 answer
  • This fine-grained dark colored igneous rock is most likely to
    8·1 answer
  • Which has a higher boiling point hcl or hi
    15·2 answers
  • Predict the solubility of the following substances in water and place them in the appropriate bins
    10·1 answer
  • Find ΔHrxn for the following reaction: <br><br> 2PbS(s)+3O2(g)→2PbO(s)+2SO2(g)
    11·1 answer
  • You are given a solution containing a pair of enantiomers (A and B). Careful measurements show that the solution contains 98% A
    12·1 answer
  • A 250mL sample of oxygen is collected over water at 30 C and 850 torr pressure. What is the pressure of the dry gas alone?
    13·1 answer
  • What is the mass of 925.4 L of hydrogen gas at STP?
    10·1 answer
  • For a substance to change from a gas to a liquid the particles must _____
    12·1 answer
  • Please help me
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!