Yaadannoo boqonnaa fi gaaffii shaakalaa

Boqonnaa 6 Fiizikii kutaa 10

Wanti fuula kana irra jiru hundi boqonnaa 6 kitaaba Fiizikii kutaa 10 tiif: wanta boqonnaan haguugu, yaadannoo gabaabaa, gaaffii shaakalaa deebii isaanii waliin, fi viidiyoo barnootaa bakka jirutti.

5
Kaardii: 10
Gaaffii shaakalaa boqonnaa 6

Boqonnaan 6 maal haguuga

1.Electromagnetic Waves
2.EM Spectrum
3.Light as a wave
4.Laws of reflection & Refraction
5.Mirrors and Lenses
6.Human Eye and Optical Instruments
7.Primary colors of light and human vision
8.Color addition of light
9.Color subtraction of light using filters

Yaadannoo gabaabaa boqonnaa 6

Kaardiiwwan fuula Fiizikii kutaa 10 irratti boqonnaa kana jala galmaa'an. Tokko tokkoon bani.

Ida'ama Halluuwwan IbsaaGabatee wabiiRed · Blue

Halluu Bu'uuraa 1	Halluu Bu'uuraa 2	Halluu Sadarkaa Lammaffaa
Red	Green	Yellow
Red	Blue	Magenta
Blue	Green	Cyan

Yoom akka itti fayyadamtu

Halluuwwan bu'uuraa ibsaa walitti makuun halluu sadarkaa lammaffaa argamu murteessuuf itti fayyadamaa.

Of eeggadhu

Ida'amni halluu kan hojjetu carallaa ibsaaf malee qalama walitti makuuf miti.

Grade 10 Physics, fuula 156 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Hisaaba LeensiiFoormulaa

\frac{1}{v} - \frac{1}{u} = \frac{1}{f}

\frac{1}{v} - \frac{1}{u} = \frac{1}{f}

$v$: Fageenya fakkii $\text{m}$
$u$: Fageenya wantaa $\text{m}$
$f$: Dheerina fokasii $\text{m}$

Yoom akka itti fayyadamtu

Leensiiwwan qalloo keessatti fageenya wantaa, fageenya fakkii ykn dheerina fokasii barbaaduuf itti fayyadamaa.

Of eeggadhu

Hisaabni leensii foormulaa daa'witii irraa adda ta'ee mallattoo hir'isuu 1/u dura qaba.

Grade 10 Physics, fuula 156 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Hisaaba Daa'witiiFoormulaa

\frac{1}{v} + \frac{1}{u} = \frac{1}{f}

\frac{1}{v} + \frac{1}{u} = \frac{1}{f}

$v$: Fageenya fakkii $\text{m}$
$u$: Fageenya wantaa $\text{m}$
$f$: Dheerina fokasii $\text{m}$

Yoom akka itti fayyadamtu

Daa'witiiwwan geengoo keessatti bakka fakkii, bakka wantaa ykn dheerina fokasii shallaguuf itti fayyadamaa.

Of eeggadhu

Dheerinni fokasii daa'witii konkeeviif poosatiivii yoo ta'u, konveeksiif immoo negaatiiviidha.

Grade 10 Physics, fuula 156 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Humna LeensiiFoormulaa

P = \frac{1}{f}

P = \frac{1}{f}

$P$: Humna leensii $\text{D}$
$f$: Dheerina fokasii $\text{m}$

Yoom akka itti fayyadamtu

Dheerina fokasii irraa humna leensii shallaguuf ykn leensii hanqina arguu sirreessu murteessuuf itti fayyadamaa.

Of eeggadhu

Humna diyaoptariin argachuuf dheerinni fokasii gara meetiraatti jijjiiramuu qaba.

Grade 10 Physics, fuula 156 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Seera Cabaa SnellFoormulaa

n_1 \sin\theta_1 = n_2 \sin\theta_2

n_1 \sin\theta_1 = n_2 \sin\theta_2

$n_1$: Indeeksii cabaa dhangala'aa tokkoffaa $1$
$\theta_1$: Kofa kuftii $^\circ$
$n_2$: Indeeksii cabaa dhangala'aa lammaffaa $1$
$\theta_2$: Kofa cabaa $^\circ$

Yoom akka itti fayyadamtu

Yeroo ibsi dhangala'aa tokko irraa gara kaaniitti darbu kofoota ykn indeeksii cabaa shallaguuf itti fayyadamaa.

Of eeggadhu

Kofoonni safaramuu kan qaban sarara noormaalii irraa malee fuula qaxxaamuraa irraa miti.

Grade 10 Physics, fuula 156 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Gaaffii shaakalaa boqonnaa 6

Gaaffii filannoo 10 boqonnaa kana irratti barreeffaman, tokkoon tokkoon isaanii deebii fi sababa qabu. Deebii banuu dura yaali. Gaaffiin kun Ingiliffaa tiin.

Gaaffii 1

According to the textbook, which three colors are the primary colors of light?

A.Red, yellow, and blue
B.Yellow, cyan, and magenta
C.Red, green, and blue
D.Red, white, and green

Deebii fi sababa agarsiisi

Deebii: C Red, green, and blue

Sababa

Red, green, and blue are the three primary colors of light.

Gaaffii 2

What is the speed of light in a vacuum, represented by c?

A.3.00 × 108 m/s
B.3.00 × 106 m/s
C.1.50 × 108 m/s
D.3.00 × 105 m/s

Deebii fi sababa agarsiisi

Deebii: A 3.00 × 108 m/s

Sababa

Light travels with a speed of 3.00 × 10⁸ m/s in a vacuum.

Gaaffii 3

Which light-sensing photoreceptor cells in the human retina are sensitive to colors?

A.Rods
B.Cones
C.Ciliary muscles
D.Optic nerves

Deebii fi sababa agarsiisi

Deebii: B Cones

Sababa

Rods and cones are the two photoreceptors in the retina, and cones are specifically sensitive to colors.

Gaaffii 4

Why is a convex mirror preferred as a rear-view mirror in vehicles?

A.It produces inverted images at infinity
B.It focuses light rays to a single focal point
C.It forms magnified real images of vehicles behind
D.It gives a wider field of view and forms erect, diminished images

Deebii fi sababa agarsiisi

Deebii: D It gives a wider field of view and forms erect, diminished images

Sababa

A convex mirror is used as a rear-view mirror because it gives a wider field of view and always forms a virtual, erect, and diminished image.

Gaaffii 5

Which of the following correctly lists electromagnetic radiations in order of increasing frequency?

A.Gamma rays, X-rays, ultraviolet, visible light, infrared
B.Infrared, visible light, ultraviolet, X-rays, gamma rays
C.Visible light, infrared, ultraviolet, gamma rays, X-rays
D.Radio waves, X-rays, visible light, ultraviolet, infrared

Deebii fi sababa agarsiisi

Deebii: B Infrared, visible light, ultraviolet, X-rays, gamma rays

Sababa

In order of increasing frequency, the electromagnetic radiation sequence is infrared, visible light, ultraviolet, X-rays, and gamma rays.

Gaaffii 6

In the addition of colored light, what color is produced when red light is mixed with green light?

A.Yellow
B.Magenta
C.Cyan
D.Blue

Deebii fi sababa agarsiisi

Deebii: A Yellow

Sababa

Combining red light and green light gives yellow light (Red + Green = Yellow).

Gaaffii 7

In a school laboratory in Hawassa, a student places an object between two plane mirrors inclined at an angle of 30°. How many images are formed?

A.6
B.10
C.11
D.12

Deebii fi sababa agarsiisi

Deebii: C 11

Sababa

The formula for the number of images formed by two inclined mirrors is (360° / θ) - 1. Here, (360° / 30°) - 1 = 12 - 1 = 11.

Gaaffii 8

What are the near point and far point of vision for a young adult with normal vision?

A.Near point is 10 cm, and far point is 100 m
B.Near point is about 25 cm, and far point is infinity
C.Near point is about 25 cm, and far point is 25 m
D.Near point is 0 cm, and far point is infinity

Deebii fi sababa agarsiisi

Deebii: B Near point is about 25 cm, and far point is infinity

Sababa

For a young adult with normal vision, the near point is about 25 cm, and the far point is at infinity.

Gaaffii 9

Which two conditions must be satisfied for total internal reflection to occur?

A.Light must travel along the normal line through two media of equal density.
B.Light must travel from an optically rarer medium to a denser medium, and the incident angle must be greater than the critical angle.
C.Light must travel from an optically denser medium to a rarer medium, and the incident angle must be less than the critical angle.
D.Light must travel from an optically denser medium to a less dense medium, and the angle of incidence must be greater than the critical angle.

Deebii fi sababa agarsiisi

Deebii: D Light must travel from an optically denser medium to a less dense medium, and the angle of incidence must be greater than the critical angle.

Sababa

Total internal reflection requires light to travel from an optically denser medium (higher refractive index) to an optically less dense medium (lower refractive index) and the angle of incidence to exceed the critical angle.

Gaaffii 10

An optometrist in Addis Ababa prescribes a lens with a power of -5.5 D to correct a person's distant vision defect. What is the focal length of this lens?