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
Sholpan [36]
3 years ago
9

Thinner in the center that at the edges; virtual image smaller.

Chemistry
2 answers:
givi [52]3 years ago
8 0

Answer:

The correct answer is concave lenses.

Explanation:

A concave lens refers to a lens, which exhibits at least one surface that bends inwardly. It is a diverging lens, which signifies that it disperses out the light rays that have been refracted via it. A concave lens is thinner at its midpoint in comparison to its edges and has an application in correcting short-sightedness.  

The formation of an image by a concave lens is virtual, which signifies that it will seem to be farther away than it actually is, and thus, smaller in comparison to the object itself.  

ipn [44]3 years ago
3 0
<h3><u>Answer</u>;</h3>

Concave Lenses

<h3><u>Explanation</u>;</h3>
  • A concave lens is thin in the middle and thick at the edges, such that it seems to cave inwards. It spreads light rays apart producing an image smaller than the actual object.
  • <em><u>Images formed by a concave lens are virtual, upright, reduced in size and located on the same side of the lens as the object. Diverging lenses or concave lens always produce images that share these characteristics. The location of the object does not affect the characteristics of the image. </u></em>
You might be interested in
CN- is a Bronsted - Lowry base. What will this substance form when it accepts a proton?
sergejj [24]
It will form HCN Hydrogen Cyanide.
8 0
2 years ago
What is the mass percent of 6.8 of sucrose in 38.4 grams of water
amm1812
The answer is 83% percent
4 0
3 years ago
A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
3 years ago
Read the reaction and the statement. H2(g) + I2(g) ⇌ 2HI(g) The concentration of H2, I2 and HI are measured as 0.04 M, 0.08 M an
hjlf

Answer:

45467777777777yt3457942

4 0
2 years ago
This decomposition is first order with respect to phosphine, and has a half‑life of 35.0 s at 953 K. Calculate the partial press
Solnce55 [7]

Answer:

0.57 atm

Explanation:

When a a reaction is first order, we have from calculus the following relation:

ln[A]t/[A]₀ = - kt

where [A]t is the concentration of A ( phosphine in this case ) after a time, t

           [A]₀ is the initial concentration of A

           k is the rate constant, and

           t is the time

We also know that for a first order reaction

           k = 0.693/ t 1/2

wnere t 1/2 is the half-life.

This equation is derived for the case when A]t/= 1/2 x [A]₀ which occurs at the half-life.

Thus, lets first find k from the half life time, and then solve for t = 70.5 s

k = 0.693 /  35.0 s = 0.0198 s⁻¹

ln [ PH₃ ]t / [ PH₃]₀ = - kt

from the ideal gas law we know pV = nRT, so the volumes cancel:

ln (pPH₃ )t / p(PH₃)₀ = - kt

taking inverse log to both sides of the equation:

(pPH₃ )t / p(PH₃)₀  = - kt

thus:

(pPH₃ )t  = 2.29 atm x e^(- 0.0198 s⁻¹ x 70.5 s ) = 0.57 atm

3 0
3 years ago
Other questions:
  • Which form of energy is non-renewable?<br> A. sunlight<br> B. fossil fuels<br> C. water<br> D. wind
    10·2 answers
  • If a solid has a density greater than 1 g/ml will it sink or float?
    11·1 answer
  • Which element is a non reactive gas?<br> Lead (82)<br> Argon (18)<br> Gold (79)
    6·1 answer
  • A 20-kg bicycle carrying a 50-kg girl is traveling at a speed of 8 m/s. What is the kinetic energy of the girl
    15·1 answer
  • Which of the following statements is not true?
    8·1 answer
  • Gases are unique because it is the only phase that
    8·1 answer
  • What do valence electrons determine about an element?
    5·1 answer
  • How many grams of Fe2O3 are formed when 51.3 grams of iron, Fe, react completely with oxygen, O2?
    9·1 answer
  • A compound is found to contain 25.24 % sulfur and 74.76 % fluorine by weight. The molecular weight for this compound is 254.14 g
    15·1 answer
  • What are the chemical properties of acids​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!