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2 years ago

Why does the frequency of a wave increase as the wavelength decreases?

2 answers:

8 0

Correct option A

The wave speed remains constant.So if the frequency increases then wavelength increases and if frequency decreases then wavelength increases to maintain the constant wave speed.

Hope This Helps You!

Mashutka [201]2 years ago

3 0

Answer: The correct answer is " because the wave speed remains constant".

Explanation:

The expression of the wavelength in terms of the frequency is as follows;

$\lambda =\frac{c}{f}$

Here, c is the speed of the light, f is the frequency of the wave and $\lambda$ is the wavelength of the wave.

The wavelength of the wave is inversely proportional to the frequency of the wave as the speed of the wave remains constant.

If the wavelength of the wave decreases then the frequency of the wave increases.

Therefore, the frequency of a wave increases as the wavelength decreases because the wave speed remains constant.

The correct option is (A).

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If the Earth got closer to the Sun, how would the gravity between the Sun and Earth change?

Neko [114]

Answer:

I think its 2. It would decrease

Explanation:

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2 years ago

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Mike is standing on the roof of a building looking at the roof of the neighboring building that is 15 meters away and 10 meters

amid [387]

Answer:

Part a)

$t = 1.65 s$

Part b)

$x = 40.4 m$

Since the distance of other building is 15 m so YES it can make it to other building

Part c)

$v = 27.3 m/s$

direction of velocity is given as

$[tex]\theta = 26.35 degree$

Explanation:

Part a)

acceleration due to gravity on this planet is 3/4 times the gravity on earth

So the acceleration due to gravity on this new planet is given as

$a = \frac{3}{4}(9.81)$

$a = 7.36 m/s^2$

now the vertical displacement covered by the canister is given as

$y = 10 m$

now by kinematics we have

$y = \frac{1}{2}gt^2$

$10 = \frac{1}{2}(7.36)t^2$

$t = 1.65 s$

Part b)

Horizontal speed of the canister is given as

$v_x = 24.5 m/s$

now the distance moved by it

$x = v_x t$

$x = 24.5 (1.65)$

$x = 40.4 m$

Since the distance of other building is 15 m so YES it can make it to other building

Part c)

Final velocity in X direction will remains the same

$v_x = 24.5 m/s$

final velocity in Y direction

$v_y = v_i + at$

$v_y = 0 + (7.36)(1.65)$

$v_y = 12.14 m/s$

now magnitude of velocity is given as

$v = \sqrt{v_x^2 + v_y^2}$

$v = \sqrt{24.5^2 + 12.14^2}$

$v = 27.3 m/s$

direction of velocity is given as

$\theta = tan^{-1}\frac{v_y}{v_x}$

$\theta = tan^{-1}\frac{12.14}{24.5}$

$[tex]\theta = 26.35 degree$

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2 years ago

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Pepsi [2]

The answer is Mesosphere

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2 years ago

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A box is sitting on a 2 m long board at one end. A worker picks up the board at the end with the box so it makes an angle with t

Vlada [557]

Answer:

Explanation:

When the box is on the ramp , component of its weight along the ramp

= mg sinθ

Friction force acting on it in upward direction

=μ mg cosθ

For sliding

μ mg cosθ < mg sinθ

μ cosθ < sinθ

.5 x cos35 < sin35

.41 < .57

So the box will slide

When sliding starts , kinetic friction acts

Net force in downward direction

mgsinθ - μ mg cosθ

acceleration

= gsinθ - μ g cosθ

= 5.62 - .3 x 9.8 x cos35

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= 3.22 m /s²

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2 years ago

Question 5

goldfiish [28.3K]

Answer:

Explanation:

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2 years ago