A 3.39 W laser has efficiency 77.5%, and produces monochromatic light of wavelength 185 nm. When it is turned on, the laser feels a backward force (due to "action- reaction"). Calculate the force on the laser, in N.

Q: formation of images by using different types of lense

A: There are 2 types of lenses. The lens with outwards bulge are known as convex lens, and the lens…

Q: Can you show your work please

A: (i) Given data: The work done to move the charge is W=8.5x10−19 J.

Q: A

A: Option A ) A is right answer. Explanation Condition for critical angle: a light ray is in the more…

Q: please provice the answer for the second image

A:

Q: 5. How far would an object need to be placed from a mirror of focal length 10.0 cm if it is image…

A:

Q: by use Positive lens O false O true

A: A convex lens is also called a positive lens, since the focal length is positive, whereas a concave…

Q: Match the answers with questions for image distance - s'.…

A:

Q: A body cools at the rate of 0.5°C/s when it is at a temperature of 50°C above the surroundings. What…

A:

Q: Locate each image & describe each image using SALT

A: ray diagrams are shown below:

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

A:

Q: 28. What type of lense is this? parallel light rays focal point axis аxis focal length A. Concave B.…

A: 28. In the given ray diagram, all the rays are converging at focal point.

Q: What is focal length of a lens?

A: Focal length of a lens is a measure of how strongly the lens converges or diverges light. It is the…

Q: Image ke Object ↑ Jy €6.00> - L L- Optic axis Lens

A: given distance of images from lens= v= -(6+L)cm distance of object from lens= u =-L cm Height of…

Q: 11) A convex mirror has a focal length of ( -8) cm. If an object is placed 15 cm from the surface,…

A: Given data:     Focal length, f = -8 cm     Distance of the object, do = 15 cm

Q: A convex mirror has focal length of 20 cm. An object is placed 10.0 cm in front of the mirror.…

A:

Q: 40 cm F= 30 cm 60 cm Where is the position of final image and its properties?

A: Given:-  For Convex lens  Object distance u= - 40 cm focal length F=30 cm  Distance from the plane…

Q: Concave mirrors cause an incoming parallel light beam to converge  True  False

A: A concave mirror has the reflecting surface which caves inwards. Examples of concave mirrors are the…

Q: vision

A: Option c is the right answer  Farsightedness

Q: may be used t

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Q: Determine focal length and magnification given radius of curvature, distance of object and image.

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Q: Find the image distance for an object placed 10cm in front a convex lens with focal length 7cm

A: Given  For convex lens,  u= -10 cm , f = 7 cm  We have to find, image distance  v = ?

Q: Points of Differences Plane Concave Convex Description/shape of the mirror. Flat surface Size of the…

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Q: 22. Which ray diagram shows a virtual image? 2F 2F 2F 2F O Left O Centre O Right None

A: Answer (left) An image is said to be virtual if it is formed on the side of object i.e. on left side

Q: Describe the image being produced by a plane mirror.

A: 1. Image formed by plane mirror is of same size as of object. 2. Image is formed behind the mirror…

Q: When a beam of light hits a mirror, the angle of reflection A.  Must equal the incident angle B.…

A: when a light fall on a mirror then angle between incident rays and normal known as incident angle…

Q: State the difference between the Virtual image and the Real image.

A: Here, we are discussing about the difference between the Virtual image and the Real image.

Q: Why does the bottom of a pond look less deep than its real depth? Support your answer with a diagram

A: The refractive index of water is greater than that of air.Hence light from the bottom of the pond…

Q: What are the types of mirror

A: A mirror is a smooth surface on which regular reflection takes place. Mirrors are of two types, 1…

Q: In your own words, describe the three steps in ray tracing used to identify where an image forms.

A: We have to write three steps in ray tracing.

Q: Calculate the image distance dị. di = ст Calculate the image height hị. hi cm

A: In first part, we need to select the correct ray diagram.  In first diagram, image height and object…

Q: If a converging lens forms a real, inverted image 21.0 cm to the right of the lens when the object…

A:

Q: What should be the power of the voltage supply that we will use in the acceleration region?

A: This is the answer to the continuation of the first question. When a particle of charge q moves at…

Q: Investigate different types of microscopes.Learn how image is formed in a compound microscope.

A: The most common microscope is used is a simple compound microscope. It consists of two convex…

Q: 1.How are images formed by the light rays reflected to a mirror?

A: Mirror is a glass surface which is coated with some material, which gives it reflective properties.…