Default Title

Question (11)

QN00671

The image formed by a pinhole camera can be seen on a screen because the image is

(A) virtual
(B) upright
(C) real
(D) reflected

Correct Answer: C

Explanation:

Real images can be formed on screens.

Link:

Report Error

Question (12)

QN00672

A candle is placed in front of a pinhole camera. The top of the candle flame forms its image at the

(A) top of the screen
(B) middle of the screen
(C) bottom of the screen
(D) side of the screen

Correct Answer: C

Explanation:

The image is inverted, so the top appears at the bottom.

Link:

Report Error

Question (13)

QN00673

Which factor mainly affects the sharpness of the image in a pinhole camera?

(A) Colour of the box
(B) Size of the pinhole
(C) Shape of the object
(D) Temperature of surroundings

Correct Answer: B

Explanation:

Smaller pinholes generally produce sharper images.

Link:

Report Error

Question (14)

QN00674

A smaller pinhole generally produces an image that is

(A) sharper and dimmer
(B) brighter and blurred
(C) larger and brighter
(D) coloured and enlarged

Correct Answer: A

Explanation:

Less light enters, making the image dim but sharp.

Link:

Report Error

Question (15)

QN00675

Which of the following devices works similarly to a pinhole camera?

(A) Periscope
(B) Human eye
(C) Kaleidoscope
(D) Microscope

Correct Answer: B

Explanation:

The eye also forms inverted images.

Link:

Report Error

Question (16)

QN00676

A student observes the image of a tree using a pinhole camera. The image will appear

(A) erect
(B) magnified only
(C) inverted
(D) invisible

Correct Answer: C

Explanation:

Pinhole cameras form inverted images.

Link:

Report Error

Question (17)

QN00677

The distance between the pinhole and screen in a pinhole camera is increased. The image size generally becomes

(A) smaller
(B) unchanged
(C) larger
(D) invisible

Correct Answer: C

Explanation:

Increasing screen distance enlarges the image.

Link:

Report Error

Question (18)

QN00678

Which property of light is demonstrated most clearly by a pinhole camera?

(A) Reflection
(B) Refraction
(C) Straight-line travel of light
(D) Scattering

Correct Answer: C

Explanation:

Pinhole cameras prove that light travels in straight lines.

Link:

Report Error

Question (19)

QN00679

Why is tracing paper sometimes used in a pinhole camera?

(A) To absorb all light
(B) To act as a translucent screen
(C) To magnify the image
(D) To produce coloured images

Correct Answer: B

Explanation:

Tracing paper allows the image to be viewed clearly.

Link:

Report Error

Question (20)

QN00680

A pinhole camera does not require a lens because image formation occurs due to

(A) refraction through glass
(B) multiple reflections
(C) straight-line travel of light
(D) scattering of light rays

Correct Answer: C

Explanation:

Light rays passing through a tiny hole form the image.

Link:

Report Error

Question (11)

The image formed by a pinhole camera can be seen on a screen because the image is

Explanation:

Link:

Question (12)

A candle is placed in front of a pinhole camera. The top of the candle flame forms its image at the

Explanation:

Link:

Question (13)

Which factor mainly affects the sharpness of the image in a pinhole camera?

Explanation:

Link:

Question (14)

A smaller pinhole generally produces an image that is

Explanation:

Link:

Question (15)

Which of the following devices works similarly to a pinhole camera?

Explanation:

Link:

Question (16)

A student observes the image of a tree using a pinhole camera. The image will appear

Explanation:

Link:

Question (17)

The distance between the pinhole and screen in a pinhole camera is increased. The image size generally becomes

Explanation:

Link:

Question (18)

Which property of light is demonstrated most clearly by a pinhole camera?

Explanation:

Link:

Question (19)

Why is tracing paper sometimes used in a pinhole camera?

Explanation:

Link:

Question (20)

A pinhole camera does not require a lens because image formation occurs due to

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY