The Compound Microscope
Q: The eye focuses by Moving the lens 3. moving both lens and retina Moving the…
A: Eye is focused by changing the focal length of the eye lens . Hence , 4th option is correct .
Q: An individual is 50% less than the normal number of green cone photo sceptres in his or her retina…
A: An individual is 50% less than the normal number of green cone photo sceptres in his or her retina
Q: a beam of light strikes a diamond at an angle of 42 degrees to the normal. with what angle does the…
A: Snell's law expresses a relation between the path followed by a ray of light when it cross from one…
Q: lease find what is incorrect about imag
A: Given:- Find:- What is wrong with this figure
Q: that
A: convex lens can form a magnified image of the object. Therefore, it is used as a magnifying glass.…
Q: A farsighted person has a near-point located 6.2 m from the eye. Find the refractive power of…
A: Given data The farsightedness of the person is given as u = -6.2 m. The image distance is given as…
Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…
A:
Q: mean for microscopes?
A: Given: A terms of the microscopes are given as,
Q: Discuss the different types of microscopes
A: Microscope: It is an optical instrument which is used to magnify the small objects. The…
Q: What kind of lens can be used to produce a real image?
A:
Q: Which of the following affects the brightness of an image of an extended (brightness is light power…
A: Required The correct option
Q: Use ray tracing to determine the height of the image.
A: Given - Height of the object hoo=2.0 cm Distance of the object doo=7.0 cm Focal length f=12.0 cm…
Q: A building is 50 feet high. At a distance away from the building, an observer notices that the angle…
A: Given - height of building =50 feet angle of elevation = 41∘
Q: What kind of lens can be used to produce a virtual image?
A: Step 1A virtual image is formed by extension of real rays behind the reflection plane
Q: The distance of the object is 30 cm, the image distance is 60 cm. What is the focal length of this…
A: The objective of the question is to calculate the focal length of a converging lens given the object…
Label the parts of the microscope.
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- What type of microscope is used to visualize the following and why? - whole mount of fly -Ebola virus - Plasmodium -muscle cell.When an object is 2 focal length away from the lens, the image appears..... The same size and inverted twice the size and inverted the same size and right side up smaller and invertedIf the eyepiece of a telescope is replaced with an eyepiece with a focal length twice as long, the magnifying power is a. four times greater. b. two times greater. c. four times less. d. two times less.
- A particular material has an index of refraction of 3.50 what percent of the speed of light in vacuum is the speed of light in the materialThe (converging) objective lens of a telescope has a focal length of 0.84 m. An object is located at a distance of 12m from the lens. At what distance from the objective lens is the image formed by this lens ? Give your answer in meters