Page 32 - APS(2022)_TG5 _Edisi Guru

Infografik Sains

BAB Cahaya dan Optik
7 7 Light and Optics

Kanta Kanta Cembung / Convex Lens
Lenses

(i) Imej
Image
Objek F (ii) F
Object (iii)

(i) Sinar cahaya yang selari dengan paksi utama dibiaskan melalui titik fokus, F, selepas melalui kanta.
Light ray that is parallel to the principal axis will be refracted through the focal point, F, after passing through the lens.
(ii) Cahaya yang melalui pusat optik kanta tidak dibiaskan.
Light that passes through the optical centre of the lens is not refracted.
(iii) Sinar cahaya yang melalui titik fokus, F, akan muncul dari kanta selari dengan paksi utama.
Light ray that passes through the focal point, F, will emerge from the lens parallel to the principal axis.

Kanta Cekung / Concave Lens

Imej yang terbentuk adalah sentiasa maya, tegak
dan dikecilkan
Objek F Imej F The image formed is always virtual, upright and diminished
Object Image

L > f + f
Objek o o e Mikroskop
Object Microscope
O F o F e F e
F o I 1
Kanta objek
Object lens Kanta mata
I 2 Eyepiece

Kira-kira 25 cm
About 25 cm

Sinar selari L = f + f
dari objek jauh o o e
Parallel rays
from distant f I
o
object

Teleskop Kanta objek Kanta mata
Telescope Object lens Eyepiece
Imej terbentuk di infiniti
Image at infinity

GPB G7

Infographic Amali Proses Sains TG5.indd 7 7/28/21 2:26 PM