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3 years ago

Microwaves have a _wavelength and _frequency than radio waves.

Physics

2 answers:

IrinaVladis [17]3 years ago

8 0

Microwaves have a shorter wavelength and higher frequency than radio waves

bulgar [2K]3 years ago

3 0

Shorter and higher for the answers in that order.

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Sergio [31]

see

below

Explanation:

refractive index = speed of light in vacuum / speed of light in medium

light travels at a speed of 3.0 x 10^8 m/s in vacuum

refractive index = 3.0 x 10^8 / 2.0 x 10^8

refractive index = 1.5

hope this helps, please mark it

4 0

3 years ago

What happens to the energy when the material is changed?

expeople1 [14]

Answer: When a material is heated or cooled, two changes may happen to the particles within the material: Chemical bonds between the particles may form, break or stretch. There is a change in the chemical potential store of energy in the material. The material will heat up or cool down as the particles within it gain or lose speed.

Explanation:

3 0

3 years ago

There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel u

amid [387]

Answer:

$L = 96.2 dB$

Explanation:

As we know that the level of intensity is given as

$\beta = 10Log(\frac{I}{I_o})$

here we know

$\beta = 104 dB$

$104 = 10Log(\frac{I}{10^{-12}})$

$I = 0.025 W/m^2$

now the sound is travelling in all possible directions so we have

$\frac{I_1}{I_2} = \frac{r_2^2}{r_1^2}$

$\frac{0.025}{I_2} = \frac{10^2}{4.1^2}$

$I_2 = 4.2 \times 10^{-3} W/m^2$

now for level of sound we have

$L = 10Log(\frac{4.2 \times 10^{-3}}{10^{-12}})$

$L = 96.2 dB$

5 0

3 years ago

In 1687, Isaac Newton published a book explaining his three laws of planetary motion and the law of gravity. The importance of t

alexdok [17]

B. all of nature follows uniform, unchaining laws.

5 0

3 years ago

Which is not a benefit of a sporting organization? a. To control all of the people in the community b. Bringing people together

Anit [1.1K]

Answer: a. To control all of the people in the community

Explanation:

The sport organization help in bring people of different communities together. It removes any kind of discrimination based on caste, gender, race, and others. People are united in a single team to bring about unity in them. The sport organization does not control the people in the community instead can bring change in their thinking and opinion about people of the other community. The sports activities are recreational in nature, they build social interaction between people of different communities, control good health, make communities safer.

7 0

3 years ago

Microwaves have a _________wavelength and _________frequency than radio waves.

Microwaves have a _wavelength and _frequency than radio waves.