What is parallax error ?

What is parallax error ?
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The apparent change in position of a target as the direction of vision changes is called parallax. For this reason, the measurement error is called parallax error.
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Related questions

Parallax Error What ?

Last Answer : of sight Direction Of change For Any Of the object Of location Apparently To change Parallax And As a result Lessons To take That Wrong Is Him Parallax Error Says.

Which one of the following statements is not correc t? (a) Parallax error is eliminated when there is no change in the staff reading when eye is moved up and down (b) The objective lens is to be focused towards a white or bright background for clear visibility of cross-hairs (c) Temporary adjustments of the dumpy level are to be performed at every set up (d) The eyepiece need not be adjusted after the first set up when the same surveyor is taking readings

Description : Which one of the following statements is not correc t? (a) Parallax error is eliminated when there is no change in the staff reading when eye is moved up and down (b) The objective lens is ... (d) The eyepiece need not be adjusted after the first set up when the same surveyor is taking readings

Last Answer : (b) The objective lens is to be focused towards a white or bright background for clear visibility of cross-hairs

A star is 5.5 light years away from the Earth. How much parallax in arcsec will it subtend when viewed from two opposite points

Description : A star is 5.5 light years away from the Earth. How much parallax in arcsec will it subtend when viewed from two opposite points

Last Answer : A star is 5.5 light years away from the Earth. How much parallax in arcsec will it subtend ... from two opposite points along the orbit of the Earth?

Explain how parallax method is used to measure distance of a star from Earth.

Description : Explain how parallax method is used to measure distance of a star from Earth.

Last Answer : Explain how parallax method is used to measure distance of a star from Earth.

What is parallax angle?

Description : What is parallax angle?

Last Answer : What is parallax angle?

What is parallax?

Description : What is parallax?

Last Answer : What is parallax?

What is the effect of distance from an object on parallax angles?

Description : What is the effect of distance from an object on parallax angles?

Last Answer : The parallax angle is inversely proportional to thedistance.

Is a star with no measurable parallax is very close to Earth.?

Description : Is a star with no measurable parallax is very close to Earth.?

Last Answer : No, if you can measure no parallax, the star is far away -further than a certain distance.

Electrostatic forces in high voltage circuits cause indicating instruments to give ____________. A. parallax readings B. highly intuitive readings C. highly accurate readings D. inaccurate readings

Description : Electrostatic forces in high voltage circuits cause indicating instruments to give ____________. A. parallax readings B. highly intuitive readings C. highly accurate readings D. inaccurate readings

Last Answer : Answer: D

Removal of parallax, may be achieved by focussing (A) The objective (B) The eye-piece (C) The objective and the eye-piece (D) None of these

Description : Removal of parallax, may be achieved by focussing  (A) The objective  (B) The eye-piece  (C) The objective and the eye-piece  (D) None of these 

Last Answer : (C) The objective and the eye-piece 

Pick up the correct statement from the following: (A) If the image of the object does not fall on the plane of the cross-lines, parallax exists (B) Parallax has nothing to do with the eyepiece (C) The eyepiece is adjusted for clear vision of the cross hairs (D) All the above

Description : Pick up the correct statement from the following: (A) If the image of the object does not fall on the plane of the cross-lines, parallax exists (B) Parallax has nothing to do with the eyepiece (C) The eyepiece is adjusted for clear vision of the cross hairs (D) All the above

Last Answer : (D) All the above

While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is (A) Correctly focussed (B) Not correctly focussed (C) Said to have parallax (D) Free from parallax

Description : While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is (A) Correctly focussed (B) Not correctly focussed (C) Said to have parallax (D) Free from parallax

Last Answer : (C) Said to have parallax

If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height (A) h = dp/(B/H) (B) h = (B/H) dp(C) h = dp/(H/B) (D) h = (H/B) dp

Description : If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height (A) h = dp/(B/H) (B) h = (B/H) dp (C) h = dp/(H/B) (D) h = (H/B) dp

Last Answer : Answer: Option A

In a theodolite a condition arising when the image formed by the objective is not in the plane of cross hairs is known as (a) Parallax* (b) Out of sight (c) Out of place (d) Transiting

Description : In a theodolite a condition arising when the image formed by the objective is not in the plane of cross hairs is known as (a) Parallax* (b) Out of sight (c) Out of place (d) Transiting

Last Answer : (a) Parallax*

Why does percentage error decrease as units of measurement increase?

Description : Why does percentage error decrease as units of measurement increase?

Last Answer : answer:Well you can think of it in the sense that the longer something you measure is, the less the error is of the whole length. It's an inverse proportional relationship if you look at the formula. For instance if you use ... So for the 20.0mm=0.5/20.0=0.0250 while for the 30.0mm=0.5/30.0=0.0167

Explain why a systematic error can’t be corrected for by taking the mean of many readings.?

Description : Explain why a systematic error can’t be corrected for by taking the mean of many readings.?

Last Answer : I don't understand the relevance of the image to the question. However, your basic idea seems to be close to the correct idea. A systematic error is in contrast to random ... actual value should be. This is why scientists must account for their estimated error using various statistical tools

What is the expected value of random error ?

Description : What is the expected value of random error ?

Last Answer : The expected value of random error is 0

What is a random error ?

Description : What is a random error ?

Last Answer : When a constant quantity is measured several times, the error that causes the measured meaning to be inconsistent is called random error .

What is a recurring error ?

Description : What is a recurring error ?

Last Answer : If the error in measuring a quantity is always one-sided, that is, if it is positive then it is only positive or if it is negative then it is only negative, then such error is called repetitive error.

What is Level Error ?

Description : What is Level Error ?

Last Answer : Answer : Lessons are wrong if there is no induction of Nikti , scattering magnetic value instrument etc. This type of error is called level error. These devices have leveling screws underneath. The instrument is leveled with leveling screws using slirite level or woolen yarn.

What is the mechanical cause of recurring error ?

Description : What is the mechanical cause of recurring error ?

Last Answer : : If the design or marking of the measuring instrument is not correct then repeat error occurs when measuring in that instrument. The capillary tube inside such a mercury thermometer must be ... temperature is measured with this thermometer, it will be more or less than the actual temperature.

How can there be mechanical error in spherometer ?

Description : How can there be mechanical error in spherometer ?

Last Answer : : When the three legs of the spherometer and the screw-head touch a plane, the instrument has an error if the zero point of the circular scale does not match the zero point of the linear scale. This error is a mechanical error.

What is zero error ?

Description : What is zero error ?

Last Answer : Devices that have vernier scales or circular scales , such as slide calipers , screw-gauge. When the ends of the jaws or screws of these instruments are joined to each other, the zero spots of the vernier ... zero spots of the main scale. If they do not match , then such error is called zero error.

What is the error and accuracy of measurement ?

Description : What is the error and accuracy of measurement ?

Last Answer : Error is a negative word and when we say "error in measurement", we think that the person who measured has made an error because he did not fulfill his responsibility properly. It's not that the ... test results can be given by knowing some common rules to find out the accuracy of the test results.

What is index error ?

Description : What is index error ?

Last Answer : Usually such errors occur in the light bench. There are indicator marks on the bench stand. The distance between the index spots of the two stands and the actual distance between the two objects (pins and ... case, if you take a lesson by looking at the index spots, the error is called index error.

What is a back error ?

Description : What is a back error ?

Last Answer : : Backwards Errors: This type of error usually occurs when the instruments , nuts, etc. , which are made based on the principle , are a little old. This is because too much use can cause the ... error. This error can be avoided by turning the screw in the same direction while taking the lesson.

What is a mechanical error ?

Description : What is a mechanical error ?

Last Answer : : There may be some errors in the equipment used for testing. All these errors are called mechanical errors. The following are the main errors of the device: Zero error , Backlash error, Level error or Horizontal line error.

What is the error of measurement ?

Description : What is the error of measurement ?

Last Answer : In order to determine the value of a quantity in the laboratory, it is necessary to measure. Measurements are never accurate. There is a limit to the accuracy of all measurements. Even with sufficient ... - 1. Mechanical error 2. Observation error 3. Random errors and 4. Recurrent or systemic error

What is random error ? What is a coincidence ?

Description : What is random error ? What is a coincidence ?

Last Answer : When a constant quantity is measured several times, the error due to which the measured meaning is inconsistent is called random error.

What is mechanical error ? What is a mechanical fault ?

Description : What is mechanical error ? What is a mechanical fault ?

Last Answer : : In physics, if there is any defect in the instrument that we need for measuring while testing something, it is called mechanical error.