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List the uses of ultraviolet rays.

Important Questions on Patterns

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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light

State any one use of infrared radiations.

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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
The order of wavelength of visible rays is
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light

Write the following radiations in the ascending order of their frequencies :

Microwaves, Ultraviolet rays, X-rays and infrared rays.

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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light

Write the following radiations in the ascending order of their wavelengths:

Microwaves, Ultraviolet rays, Gamma rays, Infrared rays

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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Name the electromagnetic radiations used for (a) water purification, and (b) eye surgery.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
How Gamma Rays are produced? Write its two important uses. 
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
In visible light wavelength of _____ colour is minimum. 
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Name six types of electromagnetic waves in ascending order in terms of their wavelength.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Which mode of propagation is used by short wave broadcast services ?
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Name the electromagnetic radiations used for eye surgery.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Explain in brief-"Infrared waves are sometimes referred as heat waves."
HARD
Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
The correct representation of wavelength intensity relationship of an ideal black body radiation at two different temperatures T1 and T2 is
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
State two applications each of X-rays and radio waves.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light

State any one source of ultraviolet radiations.

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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
How infrared waves are produced? Write its two important uses.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Give two uses each of ultraviolet rays and microwaves.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
An electromagnetic wave having wavelength 5000Ao will lie in which region of electromagnetic spectrum? 
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
Why are infra-red waves often called heat waves ? Explain.
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Physics>Relationships>Patterns>Electromagnetic Spectrum of Light

Consider the following
(i) Submarine communications
(ii) A.M. radio
(iii) Shortwave ratio
(iv) Radar

Arrange the above in increasing frequency of the waves associated with them

MEDIUM
Physics>Relationships>Patterns>Electromagnetic Spectrum of Light
An electromagnetic radiation is used for photography in fog.
(i) Identify the radiation.
(ii) Why is this radiation mentioned by you, ideal for this purpose?