Again, suppose the atomic number of a hypothetical atom is 52. Use the Bohr hypothesis to find the energy of the electron in the 52th energy level, in ev.

Q: When the object distance is equal to the focal length, then the image is formed at the focal point.…

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Q: given? 91=2. 0nC 92=3.0nc 93240nc +) - 3.0CM Be 2.Ocm

A: Given :- The charge q1 = 2.0 nC , q2= 3.0 nC  & q3 = 4.0 nC  The distance between q1 and q2 is…

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

A: Given data: The focal length is f=-8 cm. The object distance is u=15 cm.

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

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Q: Why are there different techniques in microscope

A: Ans:- Microscopic Techniques:- Microscopy is the technique used to view objects that cannot be seen…

Q: An object is placed at 30 cm from the convex lens of focal length 20 cm. The position of object is,

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Q: Question.) what is the het egarLhtO electric force On charge 92 clostance magnitude

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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: The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should…

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

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Q: How far would you have to be from the base of the object to get an angle of elevation of 20 degrees…

A: The question asks how far you would need to be from the base of an object in order to obtain an…

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

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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: can a convex lens produce: an upright image an inverted image a virtual image a real image

A:

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.…

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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: 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: 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: 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: Explain what a lens does.

A: The lens operation is explained as below,

Q: The focal length of convex lens is 1.20 cm then the power of convex lens is, a) +5 D -) -5 D =) +1 D…

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Q: it is not 2.36 cm do you have a different answer?

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Q: find the distance of the image (d) and height of the jmage (h), using the following data. Focal…

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Q: Ui= -6682.84x10-1" J.Uf= -6682.84x10-" J |F|=1338.54x10-" N

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

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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.…

Q: when an object is placed 13.8 cm in front of a mirror the image is located 20.0 cm behind the…

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