Parallax Error

Q.

The process of getting a sharp and clear image of an object is called

1. screening

2. parallax

3. focusing

4. none of these

Q. Which of the following should be the proper position of the eye for taking the reading?

1. 
2. 
3. 
4. 

Q. Three boys A, B and C got the readings 8.2 cm, 8.3 cm and 8.5 cm respectively. Who got the correct reading?

1. All of them are correct with their readings
2. A got the correct reading
   
3. B got the correct reading
   
4. C got the correct reading

Q.

While measuring length using a metre scale, the position of the eye

1. should be vertically above the 0 mark of the scale

2. Should be vertically above the point from where the measurement is to be taken

3. Should be little away from the point from where the measurement is to be taken

4. does not matter as long as the scale is accurate.

Q. The position of the eye is very important for taking measurements. There might be an error in the reading, if our eye position is not proper. This error is known as ________ error.

1. parallax
2. (a) and (b) above.
3. zero
4. instrumental

Q. Ashwin is required to take the measurement of a wooden box. Which of the following should be the proper position of his eye for taking the reading?

1. 
2. 
3. 
4. 

Q. Three boys A, B and C got the readings 8.2 cm, 8.3 cm and 8.5 cm respectively. Who got the correct reading?

1. B got the correct reading
   
2. All of them are correct with their readings
3. A got the correct reading
   
4. C got the correct reading

Q. Which of the following should be the proper position of the eye for taking the reading?

1. 
2. 
3. 
4. 

Q. Three boys A, B and C got the readings 8.2 cm, 8.3 cm and 8.5 cm respectively. Who got the correct reading?

1. C got the correct reading
2. All of them are correct with their readings
3. A got the correct reading
   
4. B got the correct reading
   

Q. arises when the reading of a scale is taken from a random angle.

1. Zero error
2. Angle error
3. Parallax error
4. Numerical error

Q. Parallax error is a human error.

1. True
2. False

Q. Ashwin is required to take the measurement of a wooden box. Which of the following should be the proper position of his eye for taking the reading?

1. 
2. 
3. 
4. 

Q.

Two students measure a particular length using the same instrument one after the other. They will always estimate an equal value even if they vary the position of their eyes.

1. False

2. True

Q. arises when the reading of a scale is taken from a random angle.

1. Numerical error
2. Zero error
3. Parallax error