Which of the following is not a necessary precaution while performing an experiment on measurement of length?

Which of the following is not a necessary precaution while performing an experiment on measurement of length?

(A)Avoid parallax error
(B)Close windows to avoid air current.
(C)Avoid zero error.
(D)repeat the measurement

Ans: Close windows to avoid air current.

JOIN OUR NOUN TELEGRAM GROUP HERE FOR MORE – ONLINE MTH TUTORIAL ALSO AVAILABLE

Leave a Reply

MEET OVER 2000 NOUN STUDENTS HERE. 

Join us for latest NOUN UPDATES and Free TMA answers posted by students on our Telegram. 

OUR ONLINE TUTORIAL CLASS IS NOW ON!!! JOIN US NOW. 
JOIN NOW!
close-link