Why must projectors and cameras form real images? Does the lens in the eye form real or virtual images on the retina?

Q: y is resolution a phrase that alludes to an image's sharpness or clarity?

A: Image resolution is typically described in PPI, which refers to how many pixels are displayed per…

Q: When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a…

A: If our eye cannot collect much reflected light due to improper positioning of eye piece. It may be…

Q: The vision defect in which the lens of the eye become too weak is called O a. Myopia O b.…

A: Here we have to find out in which vision defect eye lens becomes weak.

Q: The lens of the human eye is converging. Do you anticipate the picture created on the retina to be…

A: The image formed by the converging lens on retina is real and inverted. Also if the object is…

Q: A person is having farsightedness vision defect because, а. the eye become too long b. the eye…

A: Here given a person having farsightedness vision defect. We have to define the reason.

Q: In a ____________________ lens, parallel light rays spread out after passing through the lens

A: when parallel lines pass through the concave lens, they spread out. Because when the parallel light…

Q: The vision defect in which the lens of the eye become too long is called O a. Nearsightedness O b.…

A: The vision defect in which the lens of the eye become too long is called nearsightedness. This…

Q: The man has a range of vision from 15 cm to 150 cm. What optical power of lenses should he wear at…

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Q: In the process of accommodation: the lens changes shape to focus light waves from objects at…

A: Accommodation :  Accommodation is the adjustment of the optics of the eye to keep an object in focus…

Q: The vision defect in which the eye become too short is called O a. Myopia O b. Image defect…

A: The defect in eye is Hypermetropia which is also known as farsightedness.

Q: A person is having nearsightedness vision defect because, O a. the eye become too short Ob. no…

A:

Q: An astronomical telescope has its two lenses spaced82.0 cm apart. If the objective lens has a focal…

A: The focal length of the eyepiece can be obtained as L=fo+fefe=L-fo=82.0cm-78.5cm=3.5cm

Q: An object is located 1.5  m  from a 5.3-D lens. By how much does the image move if the object is…

A: Data Given ,  Distance of object ( u ) = 1.5 m Power of lens ( P ) = 5.3 D Let , Image distance from…

Q: What is the focal length and power of the eye lens when viewing an object 1.2 meter away? Consider…

A: 23.  distance of object, p =- 1.2 m  distance of image, q =2 cm

Q: A digital camera whose lens has a focal length of 8.0 mm is used to take a picture of an object 30…

A: Given: The object distance is 30 cm. The focal length is 8.0 mm. The height of object is 2.4 cm.

Q: A 2.0-cm object is 2.0 cm in front of a two-lens system with focal lengths +4.0 cm and –4.0 cm,…

A: We have an object of height ho=2 cm at a distance u=2 cm from a lens of focal length f1=4 cm which…

Q: A person is reading a newspaper held 40cm from their eyes. The print is 1.5mm high. Assuming that…

A:

Q: What will be the magnification if an object is placed 10 cm from a convex lens of focal length 20…

A: Given p=10cm and focal length is 20cm We have to find the magnification value The formula we used…

Q: The optic nerve and the brain invert the image formed on the retina. Why don’t we see everything…

A: Explanation:

Q: At a distance of 6 meters, a person with average vision is able to clearly read letters 1.0 cm high.…

A:

Q: A+2.5 D lens is being used to make an image of a distant object on a screen. If a second +1.5 D lens…

A:

Q: Why is your vision so blurry when you open your eyes while swimming under water? How does a face…

A: Light differently travels in different mediums and thus the image of the objects appears different…

Q: A nearsighted man cannot see objects clearly beyond 30 cm from his eyes. How close must he stand to…

A:

Q: What will be the magnification if an object is placed 10 cm from a convex lens of focal length 20…

A:

Q: Name the three common defects of vision. What are their causes? Name the type of lens used to…

A: To determine: Name the three common defects of vision. What are their causes. Name the type of lens…

Q: 36.) Which of the following describes the chief reason for color blindness? a. the cones in the…

A: On the retina, the image is formed when the light waves fall on the light-sensitive cells on the…

Q: A person is having farsightedness vision defect because, а. the eye become too short O b. the eye…

A:

Q: The focal length of a relaxed human eye is approximately 1.66 cm. When we focus our eyes on a…

A: The refractive power of the relaxed human eye can be calculated using the Lens maker’s formula

Q: In a compound microscope, it consists of an objective lens with a focal length of 5 mm and an…

A:

Q: The human eye can focus on objects at different distances by adjusting the focal length of the eye…

A: Consider the eyeball of the eye as shown

Q: A person is having farsightedness vision defect because, Oa. the eye become too short O b. the lens…

A:

Q: A person is having nearsightedness vision defect because, O a. the eye become too long Ob. the eye…

A: Nearsightedness is mainly occurs when our eyeball grows too long or the cornea becomes too steeply…

Q: In a compound microscope, it consists of an objective lens with a focal length of 5 mm and an…

A:

Q: The screen in a pinhole camera is moved farther away from the pinhole. The image on the screen…

A: The size of the image varies when the distance of the screen from the pinhole is varied. The…

Q: The system below is balanced if m1 = m2 F m3. E30 cm 40 cm 30 cm m1 m2 m3 Image from Lumen Learning…

A: Due to mass m3 the magnitude of the torque that will produce rotation in clockwise direction will be…

Q: Our eyes have converging lens, does this mean the images we see are upside down on our retinas?…

A: The statement is correct. Converging lens produce inverted image on the retina. Brain makes…

Q: A camera lens has a magnification of -0.01.  The distance between the lens and the film is 2 cm.…

A: The magnification of the lens m=-0.01  The image is formed on the lens .Therefore the image distance…

Q: What is the far point and near point of the human eye with normal vision?

A:

Q: A small telescope has an objective lens of focal length 144cm and an eyepiece of focal length 6.0cm.…

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Q: An eyeglass lens has a diopter of -4.0. What is its focal length? O -0.25 m O 0.25 cm O 4 cm O -4 m

A: