A hypothetical atom has atomic number 56. Using the Bohr hypothesis, find the frequency of revolution for the electron in the 63th energy level, in Hz.

Q: Difference between  image in mirror and lenses

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Q: A

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

Q: A lens creates an image that has a magnifica The lens is convex. The lens is concave. The image is…

A: Lens creates an image that has a magnification of -.4 So magnification M = -0.4

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

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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: 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: 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: 5. What is an example of a real image? *

A: An image, which is formed when the light rays coming from an object intersect at a location after…

Q: calculate the tank Peressure. atm ม Air 100mm 100mm1 960mm Hy virg ну mercury mercury

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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: 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…