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3 years ago

Infrared rays have a shorter wavelength than Question 11 options: X-rays. ultraviolet rays. radio waves. gamma rays.

Physics

2 answers:

katrin2010 [14]3 years ago

5 0

Answer : Infrared rays have a shorter wavelength than radio waves.

Explanation :

The wavelength of Infrared rays is 700 nm – 1 mm

The wavelength of X- rays is 0.01 nm – 10 nm

The wavelength of UV rays is 10 nm – 400 nm

The wavelength of radio waves is 1 meter – 100,000 km

The wavelength of gamma rays is less than 0.01 nm

So, from the above data it is clear that the wavelength of the infrared rays have a wavelength shorter than the radio waves.

Hence, the correct option is (C) " radio waves ".

Scorpion4ik [409]3 years ago

5 0

Answer:

Infrared rays have a shorter wavelength than radio waves.

Explanation:

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Neglecting air resistance which of the following statements is not true regarding the motion of a ball thrown vertically with an

inysia [295]

Answer:

c or b

Explanation:

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3 years ago

A 33 kg gun is standing on a frictionless surface. The gun fires a 57.7g bullet with a muzzle velocity of 325m/s. The positive d

Stella [2.4K]

Kinetic Energy = (1/2) mv^2.

m = 57.7 g = 57.7/1000 = 0.00577 kg.
v = 325 m/s.

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E = 304.728125 J.

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3 years ago

The time that is required for a vibrating object to complete one full cycle is called : Group of answer choices

disa [49]

Answer:

Correct option : (c) period.

Explanation:

The time that is required for a vibrating object to complete one full cycle is called the time period. If f is the frequency of a wave, then the relation between the frequency and the time period is given by :

$T=\dfrac{1}{f}$

These are the characteristics of a wave. Some other characteristics are wavelength, amplitude, intensity etc. So, the correct option is (c) "period".

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4 years ago

Two charges that are 1 meter apart repel each other with a force of 2 N. If the distance between the charges is increased to 2 m

Savatey [412]

Answer:

b) 0.5 N

Explanation:

From coulomb's law,

F = kq'q/r².................... Equation 1

Where F =force of repulsion between the charges, q' = first charge, q = second charge, r = distance between the charges, k = proportionality constant.

q'q = Fr²/k........................... Equation 2

Given: F = 2 N, r = 1 m, k = 9.0×10⁹ Nm²/C²

Substituting into equation 2

q'q = 2(1)²/(9.0×10⁹)

q'q = 2/9.0×10⁹ C².

If the distance between the charges is increased to 2 meters,

r = 2 m, q'q = 2/9.0×10⁹ C².

Substitute into equation 1

F = 9.0×10⁹(2/9.0×10⁹)/2²

F = 2/4

F = 1/2 = 0.5 N.

The right option is b) 0.5 N

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4 years ago

What type of star is the sun?

finlep [7]

I believe the correct answer from the choices listed above is option B. The sun is a main sequence type of star. <span>The sun is classified as a G2V star, sometimes referred to as a yellow dwarf. It is a Population I star in its main </span>sequence<span>. Hope this answers the question.</span>

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4 years ago

Read 2 more answers