Physics Questions
Explore questions in the Physics category that you can ask Spark.E!
% of body water for healthy females
Element X has an average atomic mass of 64.32 amu. If this element contains only two isotopes. X-64 and X-65, which isotopes is present in the greater abundance.
Lead contains 82 protons and 125 neutrons. write the shortened notation of the element with its symbol, atomic number, and mass number
What is the smallest part of an atom that retains all properties of the element?
What subatomic particle was found by using the cathode ray tube?
Which is the correct symbol for the atom with 42 protons and 49 neutrons.
Which scientist developed the model whose center was entirely charged and surrounded by negative charged.
In a neutral atom, the number of protons is equal to the number of what?
When corrected with spectacle lenses which needs more accommodation than emmetropes (higher accommodation demand)? A) hyperopesB) myopes
_______ is how much accommodation is necessary to clear and object at a certain distance.
When corrected with spectacle lenses which will require presbyopic correction later than emmetropes? A) hyperopesB) myopes
________ is the power of the correcting lens at the first principle plane of the eye.
_______ is the linear distance between two retinal (image) points that correspond to two object points in space.
High hyperopes (phakic) usually have low refractive corneal power or short axial length. They typically can adapt to optics and their RE usually is less than ______.
Roving ring scotoma: as eye rotates, scotoma moves in the direction _______ to the direction of eye movement. It is most problematic at ______ distances.
______ is when the head moves to look at an object. The FOV move in the OPPOSITE direction (against motion). There is also prismatic effect (base in same direction as head movement).
Compared to an emmetrope how does the retinal image size compare to an uncorrected REFRACTIVE hyperope? What about REFRACTIVE myope?
How do we control edge thickness? Pick threeA) large lens sizeB) small lens sizeC) minimal decentrationD) maximize decentrationE) glass lens materialF) high index lens material
What law is utilized when correcting axial ametropes with a spectacle lens in the primary focal plane of the eye (12-14mm), the retinal image size produced by this correction is the same as that of an emmetrope?
Ocular rotations are _______ (increased/decreased) for plus lenses. _______ (increase/decreased) for minus lenses as compared to emmetropes.