identify the wavelengths and frequency used for radar

Wavelength and frequency are inversely proportional.

Energy and wavelength are inversely proportional.

Energy and frequency are directly proportional.

Explanation:

v=λf

λ=v/f

Where λ= wavelength, f= frequency

This means as wavelength increases the frequency decreases and vice versa

Energy and wavelength are inversely proportional.

E = h · c / λ.

Where E= Energy, λ= wavelength

As Energy increases the wavelength decreases.

Energy and frequency are directly proportional.

Wavelength and frequency are inversely proportional.

Energy and wavelength are inversely proportional.

Energy and frequency are directly proportional.

Explanation:

v=λf

λ=v/f

Where λ= wavelength, f= frequency

This means as wavelength increases the frequency decreases and vice versa

Energy and wavelength are inversely proportional.

E = h · c / λ.

Where E= Energy, λ= wavelength

As Energy increases the wavelength decreases.

Energy and frequency are directly proportional.

Explanation:

A = Wavelength

The distance between two consecutive crest or trough is wavelength

B = Amplitude

The maximum distance covered by the particles of a wave

C = Rest postion/equilibrium

When there is no disturbance in the medium

D = Trough

It is the displacement in negative direction

E = Crest

It is the displacement in positive direction

(A) The relationship between the wavelength and frequency is given by :

There is an inverse relationship between wavelength and frequency.

(B)

When the frequency is decreased, the wavelength of a wave increases.

Explanation:

A = Wavelength

The distance between two consecutive crest or trough is wavelength

B = Amplitude

The maximum distance covered by the particles of a wave

C = Rest postion/equilibrium

When there is no disturbance in the medium

D = Trough

It is the displacement in negative direction

E = Crest

It is the displacement in positive direction

(A) The relationship between the wavelength and frequency is given by :

There is an inverse relationship between wavelength and frequency.

(B)

When the frequency is decreased, the wavelength of a wave increases.

1st

Cell phones depend on both mechanical and electromagnetic waves to be useful. Which answer below correctly identifies how each wave is used in cell phones?

Correct option

Mechanical waves allow the cell phone to emit a sound when ringing; Electromagnetic waves allow a signal to be picked up when making a call.

(Mechanical waves, made by oscillating a membrane inside the phone are responsible for sound. While electromagnetic waves, such as radio signals, allow us to make phone calls)

2nd

True or False. The Electromagnetic Spectrum can be described in terms of wave energy, frequency, and wavelength.

Correct option

True because the electromagnetic spectrum is ordered based on wave energy, which is described on a wave as wavelength and frequency.

(These are the basic characteristics of an electromagnetic wave, and depending of the frequency, they carry an specific amount of energy.)

1st

Cell phones depend on both mechanical and electromagnetic waves to be useful. Which answer below correctly identifies how each wave is used in cell phones?

Correct option

Mechanical waves allow the cell phone to emit a sound when ringing; Electromagnetic waves allow a signal to be picked up when making a call.

(Mechanical waves, made by oscillating a membrane inside the phone are responsible for sound. While electromagnetic waves, such as radio signals, allow us to make phone calls)

2nd

True or False. The Electromagnetic Spectrum can be described in terms of wave energy, frequency, and wavelength.

Correct option

True because the electromagnetic spectrum is ordered based on wave energy, which is described on a wave as wavelength and frequency.

(These are the basic characteristics of an electromagnetic wave, and depending of the frequency, they carry an specific amount of energy.)

PART A)

Energy of the light is given as

now we have

now we have

now we have

PART B)

When light of different wavelength interact with a given surface then surface has property to absorb the light of definite energy due to which that light is completely absorbed while other all energy is reflected back by the surface

Here same occur in the given example as here energy of green light is completely reflected by the surface while energy of red light is completely absorbed by the surface

PART C)

Wavelength = wavelength of gamma rays are less than the wavelength of visible light

Energy = energy of gamma rays are more than the energy of visible light

Frequency = frequency of gamma rays is more than the frequency of visible light

speed = speed of all electromagnetic waves are same so speed will be same for both

The 7 types of electromagnetic radiation, from largest to smallest are:

Radio waves

Microwaves

Infrared waves

Visible light (ROY G BIV, red being longest and violet being shortest)

Ultraviolet (UV) radiation

X-rays

Gamma rays

The longer the wavelength, the smaller the frequency, and vice versa.

Hope this helps!!