Image Formation by Lenses

Which figure represents the path light takes through a converging lens?

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Tags

NGSS.HS-PS4-3

Which lens represents the path light takes through a diverging lens?

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The above lens is a type of ___.

• diverging lens

• converging lens

• divergent lens

• convergent lens

Tags

NGSS.HS-PS4-5

The lens pictured is exhibiting _______ behavior and is ______ in shape.

• converging, convex

• converging, concave

• diverging, convex

• diverging, concave

Diagram shows two concave lenses. Compare their focal lengths, f_{1 and} f₂.

Rajah menunjukkan dua kanta cekung. Bandingkan panjang fokus dua kanta cekung f₁ dan f₂.

• f₁ < f₂

• f_{1 =} f₂

• f_{1 >} f₂

Diagram shows the formation of image I for object O. At which position, would the observer not see the image?

Rajah menunjukkan pembentukkan imej I untuk objek O. Pada kedudukan manakah pemerhati tidak dapat melihat imej itu?

• A

• B

• C

• D

Diagram shows light rays passing through a concave lens. Which points is the focal point?

Rajah menunjukkan sinar cahay merambat melalui suatu kanta cekung. Manakah antara titik ialah titik fokus?

• A

• B

• C

• D

Which of the following ray diagrams shows the convex lens can act as a magnifying glass? The focal length of the lens is 10 cm.

Antara gambar rajah sinar berikut, yang manakah menunjukkan kanta cembung boleh bertindak sebagai kanta pembesar? Panjang fokus bagi kanta itu ialah 10 cm.

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Which of the following ray diagrams for a concave lens is correct?

Gambar rajah sinar yang manakah bagi satu kanta cekung adalah betul?

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An object is placed in front of a convex lens with a focal length, f. An image of the same size as the object is formed on the screen. The object distance is

Satu objek diletakkan di hadapan sebuah kanta cembung dengan panjang fokus, f. Satu imej yang sama saiz dengan objek terbentuk pada skrin. Jarak objek adalah

• less than f

  kurang daripada f

• between f and 2f

  di antara f dan 2f

• same as 2f

  sama dengan 2f

• greater than 2f

  lebih besar daripada 2f