Infra-red rays
X-rays
Ultra-violet rays
Gamma rays
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According to the electromagnetic spectrum( an entire range of light waves, radio waves etc), RIVUXG
R-RADIO WAVE
I-INFRA-RED RAYS
V-VISIBLE LIGHT
U- ULTR-AVIOLET RAYS
X- X-RAYS
G-GAMMA RAYS.
Nota Bene: This is a order of increasing FREQUENCY, ENERGY, Penetration but decreasing WAVELENGTH.
As a result the answer his Infr-red, if this order is strictly abide with. Thank you!
From A Source-----»»»...What is Infrared Radiation?
The light we see with our eyes is really a very small portion of
what is called the "Electromagnetic Spectrum." The
Electromagnetic Spectrum includes all types of radiation - from
the X-rays used at hospitals, to radio waves used for
communication, and even the microwaves you cook food with.
Radiation in the Electromagnetic Spectrum is often categorized
by wavelength. Short wavelength radiation is of the highest
energy and can be very dangerous - Gamma, X-rays and
ultraviolet are examples of short wavelength radiation. Longer
wavelength radiation is of lower energy and is usually less
harmful - examples include radio, microwaves and infrared. A
rainbow shows the optical (visible) part of the Electromagnetic
Spectrum and infrared (if you could see it) would be located
just beyond the red side of the rainbow.
Infra-red rays radiates lesser heat...Ultraviolet(sun), Xrays(burning of cancerous cells), Gamma rays(from electromagnetic radiations having extremely high frequencies and high energy photons... )
Gamma rays: Have the highest energy and the shortest wavelength.
X-rays: Have high energy and shorter wavelengths than ultraviolet rays.
Ultraviolet rays: Have higher energy compared to infrared rays.
Infra-red rays: Have the longest wavelengths and thus the lowest energy in this group.
So, the correct answer is A. Infra-red rays.
It's correct according to RAMIVUXG
Radiowaves, microwave, infrared, visual light, Ultraviolet ray, X-ray and Gamma ray
The answer should have be Radio wave if wish z in d option but since z not der the answer z infra ray
In reverse biased p-n junction diode, the free
electrons begin their journey at the negative
terminal whereas holes begin their journey at the
positive terminal. Free electrons, which begin
their journey at the negative terminal, find large
number of holes at the p-type semiconductor and
fill them with electrons. The atom, which gains
an extra electron, becomes a charged atom or
negative ion or motionless charge. These
negative ions at p-n junction (p-side) oppose the
flow of free electrons from n-side.
On the other hand, holes or positive charges,
which begin their journey at the positive
terminal, find large of free electrons at the n-
type semiconductor and replace the electrons
position with holes. The atom, which loses an
electron, becomes a charged atom or positive
ion. These positive ions at p-n junction (n-side)
oppose the flow of positive charge carriers
(holes) from p-side.
If the reverse biased voltage applied on the p-n
junction diode is further increased, then even
more number of free electrons and holes are
pulled away from the p-n junction. This increases
the width of depletion region. Hence, the width
of the depletion region increases with increase in
voltage. The wide depletion region of the p-n
junction diode completely blocks the majority
charge carriers. Hence, majority charge carriers
cannot carry the electric current.
However, p-n junction diode allows the minority
charge carriers. The positive terminal of the
battery pushes the holes (minority carriers)
towards the p-type semiconductor. In the similar
way, negative terminal of the battery pushes the
free electrons (minority carriers) towards the n-
type semiconductor.
The positive charge carriers (holes) which cross
the p-n junction are attracted towards the
negative terminal of the battery. On the other
hand, the negative charge carriers (free
electrons) which cross the p-n junction are
attracted towards the positive terminal of the
battery. Thus, the minority charge carriers carry
the electric current in reverse biased p-n junction
diode.
The electric current carried by the minority
charge carriers is very small. Hence, minority
carrier current is considered negligible
