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BAB 6: CAHAYA DAN OPTIK

Authored by MOHAMAD Moe

Physics

10th - 11th Grade

Used 22+ times

BAB 6: CAHAYA DAN OPTIK
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23 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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Rajah (a) menunjukkan cahaya bergerak dari medium X ke medium Y dan Rajah (b) menunjukkan cahaya bergerak dari medium X ke medium Z. Ketumpatan bagi medium dalam urutan menurun ialah

Diagram (a) shows the light travels from medium X to medium Y and Diagram (b) shows the light travels from medium X to medium Z. The density of the medium in descending order is

Z, X, Y

Y, X, Z

Z, Y, X

X, Y, Z

2.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

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Rajah menunjukkan satu sinar cahaya melalui satu bongkah kaca. Indeks biasan bagi kaca itu ialah 1.52. Berapakah sudut tuju?

Diagram shows a ray of light passing in to a glass block. The refractive index of the glass is 1.52. What is the angle of incidence?

19.7°

33.7°

60.7°

68.0°

3.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

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Rajah menunjukkan sinar cahaya merambat dari udara ke blok kaca. Apakah yang berlaku pada sinar cahaya apabila memasuki blok kaca?

Diagram shows light ray travels from air to glass block. What happen to light ray when it enters the glass block?

Cahaya terbias mendekati normal apabila memasuki blok kaca/The light refracts towards normal as it enters the glass block.

Sudut tuju sama dengan sudut biasan/The incident angle is equal to the refracted angle.

Cahaya merambat lebih laju apabila memasuki blok kaca/The light travels faster as it enters the glass block.

Kecerahan cahaya bertambah apabila ia merambat di dalam blok kaca/The brightness of light increases as it travels in the glass block.

4.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Rajah manakah yang menunjukkan laluan cahaya yang betul apabila cahaya merambat melalui dua lapisan udara yang berbeza suhu?

Which diagram shows the correct light path when light propagates through two layers of air with different temperature?

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5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

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Rajah menunjukkan dua sinar cahaya merambat dari blok X ke udara. Berapakah sudut genting bagi blok X?

Diagram shows two light rays propagate from block X to air. What is the critical angle for block X?

18°

23°

50°

48°

6.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

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Rajah menunjukkan sinar cahaya ditujukan ke dalam satu bongkah kaca lut sinar. Berapakah indeks biasan bongkah kaca itu?

Diagram shows a ray of light entering a transparent glass block. What is the refractive index of the glass block?

0.83

1.18

1.21

1.58

7.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Antara berikut, sudut manakah menunjukkan sudut genting bagi kaca?

Which of the following angle in diagram below shows the critical angle of the glass?

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