If you are looking for the physics neet mnemonics then you are on the right page because here we have shared the Mnemonics of physics for Fsc, MDCAT preparation.
OPTICS
1) Colour Code for Resistances
B B R O Y
Black Brown Red Orange Yellow
0 1 2 3 4
of Great Britain had Very Good Wife
Green Blue Violet Grey White
5 6 7 8 9
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2) Fleming's Left Hand Rule is for Motors
Fleming's Right Hand Rule is for Generators
(Induction)
To remember read Generator as Genrighter
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3) Order of rainbow colors
@ Richard of York gave battle in vain"
Explanation:-
(red, orange, yellow, green, blue, indigo, violet).
Note:-
Additionally, the fictitious name Roy G. Biv can be
used as well.
(red, orange, yellow, green, blue, indigo, violet).
…………………………………………………………………………………………
4) Electromagnetic spectrum
In the order of increasing frequency or decreasing
wavelength of electromagnetic waves;
Radio waves, Microwaves, Infrared, Visible light, Ultraviolet,
X-Rays, Gamma Rays
@ Roman Men Invented Very Unusual X-Ray Guns
@ Rich Men In Vegas Use Expensive Gadgets.
In the order of increasing wavelength;
@ Good Xylophones Use Very Interesting Musical
Rhythms.
@ Godzilla-X Using Violence In Meeting Room.
where,
Ga: Gamma Rays
X : X-Rays
U: Ultraviolet
V: Visible light [ VIBGYOR ]
I: Infrared
M: Microwaves
S: Short Radio waves
F: FM and TV Radio waves
A: AM Radio waves
L: Long Radio waves
………………………………………………………………………
5) Microwave frequency bands
@ "King Xerxes Can Seduce Lovely princesses"
Explanation:-
K band
X band
C band
S band
L band
Mnemonic for microwave frequency bands in the
increasing wavelengths (decreasing frequencies),
which are K band, X band, C band ,S band, L band,
respectively s given by,
@King Xerxes Can Seduce Lovely princesses"
………………………………………………………………………
6) Plane Glass
( @ Red List = Red least )
Explanation:-
If a plane glass slab is placed on letters of different
colours
RED letters are raised LEAST and violet colour are
raised most.
……………………………………………………………………………………
7) Complementary Colours
[ @ GRB are primary colour so are placed in corner ]
@ BoY RoC GM
Explanation:-
If 2 colour after mixing gives white then these two
colours are called complementary colours.
R + G + B = White ( W )
R + G = yellow ( Y )
G + B = C ( Peacock blue )
R = B = M
B + Y = White ( W )
G + M = White ( W )
Put the colour coming in same word just opposite and perpendicular then we get the triangle which give all result of mixing.
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8) Nature of images formed
Nature of images formed
i) Compound microscope
a. Intermediate image
Real, Inverted, Magnified [ @CRIMe In ]
b. Final Image
Virtual, Inverted, Magnified [ @ VIM-Floor ]
ii) Astronomical telescope/simple telescope
a. Intermediate image
Real, Inverted and Point size [ @RIP In ]
b. Final image
Virtual, Inverted, Magnified [ @Final VIM]
iii) Terrestrial Telescope ( 3 lenses )
a. Intermediate image:
Real, Inverted, Diminished [ @ In TeRID ]
b. Final Image
Virtual, Erect and Magnified [ @ ViErMa Final ]
iv . Galilean Telescope
a. Intermediate image:
Real Inverted Diminished [ @ RID Inter Galli]
b. Final Image
Virtual , Erect and Magnified [@ VEM ]
………………………………………………………………………
9) Similarity of Eye and Camera
Similarity of Eye and Camera
@ RIPE Fruits Directly Affect System
Explanation:-
i.e R: Retina F: Film
I: Iris D: Diaphargm
P: Pupil A: Aperture
E: Eyelid S: Shutter
1=> When a wire is stretched n times them new resistance of wire
R`=n²R
2.=>When radius of a wire is decrease n times then new resistance of wire
R`=n⁴R
3.=>when a wire is bent into circle then new resistance of wire is given by
R`=R/4
4.=>when three wire are combined to form an equitaral triangle then new resistance
R`=2/3 ×R
5.when a wire is stretched I length increases x% then percentage increase increase in R=2x%(small change up to 10%)
6.=>possible combination of conductor of equal resistance is given by
2power n-1
7.=> If resistance of n conductor different then possible combinations are
2 power n
8.if identical resiatances are first connected in series and then in parallel the ration of equivalent resistances is give by
Rp/Rs=n²/1
=>Rp=n²Rs
9.power. In series
1/peq=1/p1+1/p2,,,,,,,,,1/on
Power in parallel
Peq=P1+P2
10.Ration of equivalent power of series and parallel
Pp=n²Ps
11. In series
P=I²R
Brightness
B~R
B~V
B~1/power ratted
Fuse ~V
Fuse~1/power ratted
12.In parallel
P=V²/R
B~wattage
B~current
B~P ratted
B~1/Resistance
Fuse~cureent
Fuse~watt
13.For n identical resistance in series
R`=nR
In parallel
R`=R/n
14.For n identical power in series
P`=P/n
In parallel
P`=NP
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