Question

PINHOLE CAMERA QUESTIONS 1.What is the height of the image formed when an object of 20cm high is placed at a distance of 50 cm from a pinhole camera and width of camera is 10cm? 2.The distance between the pinhole and the screen of a pinhole camera is doubled from 20cm to 40cm. How will it affect the image of an object kept at a distance of 20cm in front of the pinhole? 3. A pinhole camera of height 15cm forms an image 3cm high of a man standing 9m in front of camera. What is the height of a man in the nearest centimeter? 4. An object 5cm high is placed in front of a pinhole. What is the height of an image when the image is 10cm from a camera at 5cm? 5. Calculate the height of the image formed by a pinhole camera of length 14cm used to photograph an object 80cm away from the hole and 90cm high 6. Why does a pinhole camera produces an inverted image? 7. What happens to the sharpness of a pinhole camera when the length is increased? answer pls

Answer 1

oh no................