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4 years ago

When parallel light rays exit a concave lens, the light rays

Chemistry

2 answers:

Viefleur [7K]4 years ago

8 0

Answer:

The light rays will be diverged when they are permitted to pass through the concave lens.

Explanation:

A concave lens refers to a spherical optically transparent lens having a thinner middle part, bulged towards the edges and curved inwardly. It is a diverging lens, in case of an ideal concave lens, both the marginal and the paraxial rays gets diverged after getting refracted by the lens. Thus, the parallel rays will get diverged when they are permitted to go through the concave lens.

sergejj [24]4 years ago

4 0

Will refreact through the lens and diverge, never intersecting

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4 years ago

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3 years ago

A scientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘C. What is the molar mass of this gas?

Ivan

Answer:

The molar mass of the gas is 36.25 g/mol.

Explanation:

To solve this problem, we can use the mathematical relation:

ν = $\sqrt{3RT/M}$

Where, ν is the speed of light in a gas (ν = 449 m/s),

R is the universal gas constant (R = 8.314 J/mol.K),

T is the temperature of the gas in Kelvin (T = 20 °C + 273 = 293 K),

M is the molar mass of the gas in (Kg/mol).

ν = $\sqrt{3RT/M}$

(449 m/s) = √ (3(8.314 J/mol.K) (293 K) / M,

by squaring the two sides:

(449 m/s)² = (3 (8.314 J/mol.K) (293 K)) / M,

∴ M = (3 (8.314 J/mol.K) (293 K) / (449 m/s)² = 7308.006 / 201601 = 0.03625 Kg/mol.

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3 years ago

Do liquids have higher coefficients of expansion than solids do

zmey [24]

Answer: yes they do.

Explanation:

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